Industrial Relations/Human Resources; International Trade; Labor; Labor Union; Management; Manufacturing; Salesmanship & Selling; Taxes; and field of specific interest
Butchers-See Meat & Meat Provisions Butter & Cheese-See Agriculture & Agricultural Supplies; Dairy
Buying-See Purchasing -C-
Cafeteria-See Food & Food Preparation; Restaurants & Catering; School Administration
Camps & Camping-See Sports & Sporting Goods; Hunting & Fishing; Natural History/Wildlife; Outdoors; Parks & Recreation Areas; Regional Interest; Social Services & Welfare; Youth; Environment & Ecology
Canadian Government-See U.S. (& Canadian) Fed. Govt. Canals-See Ships & Shipping Candy-See Confectionery Canning-See Food & Food Preparation; Packaging Canoeing-See Outdoors; Boats & Boating; Sports & Sporting Goods
Canvas Goods- See Textiles Caps-See Apparel & Accessories Careers-See Education; Employment; Industrial Relations/Human Resources; Labor
Cargo Handling-See Ships & Shipping; Traffic & Transportation; Trucking; Warehousing & Distribution
Carpentry-See Crafts; Hobbies; Home: Furnishings, Entertainment; Construction & Building; Lumber & Wood
Carpets-See Home: Furnishings, Entertainment; Textiles Cartography-See Geography; Engineering/Civil Cartoons-See Comics; Humor & Satire Car-Wash Industry- See Automotive Catering-See Hotel Industry; Restaurants & Catering Cats-See also Animals & Pets; Veterinary Cattle-See Dairy; Livestock Caves-See Geology Cement & Concrete-See Construction & Building; Glass/ Stone & Clay
Cemeteries-See Funeral Service Cemetery Monuments-See Funeral Service; Glass/Stone & Clay
Ceramics-See Art & Sculpture; Glass/Stone & Clay; Hobbies Cereals-See Feed, Grain & Milling; Food & Food Preparation Chain Stores-See Department Store & Retail; Grocery Chamber of Commerce- See also Business & Industry; Regional Interest
Charities-See Clubs & Associations; Philanthropy & Fundraising; Social Services and Welfare
Cheese-See Dairy; Food & Food Preparation Chemistry & Chemicals-See also Engineering/Chemical; Biochemistry; Drugs & Pharmaceuticals
Chess-See Games & Toys; Hobbies; Sports & Sporting Goods Child Psychology-See Children; Education; Psychology Children-See also Baby; Education; Family; Youth Children’s Goods-See Apparel & Accessories; Children; Games & Toys; Gifts & Greeting Cards
Chinaware-See Home: Furnishings, Entertainment; Glass/Stone & Clay
Church Management-See Religion & Theology
Cigarettes & Cigars-See Tobacco Cinematography-See Film; Television & Video Circulation Management-See Advertising & Marketing; Newspaper Industry; Periodical Industry
Circus-See Entertainment; Theatre Citizenship-See Political Science & Politics City Planning-See Public Management & Planning Civil Defense-See Military & Naval; Public Management & Planning
Civil Engineering-See Engineering/Civil Civil Rights-See also Ethnic; Gay & Lesbian Interest; Literary Reviews; Political Science & Politics; Women
Civil Service-See Employment; Government; Public Management & Planning; U.S. (& Canadian) Fed. Govt.
Classical Studies-See Archaeology & Paleontology; Culture & Humanities; History; Literature & Linguistics
Clay-See Glass/Stone & Clay Cleaning-See Laundry/Cleaning & Dyeing Climate-See Geography; Meteorology Clocks-See Instruments: Scientific, Technical; Jewelry/Clocks & Watches
Clothing-See Apparel & Accessories; Consumer Interests; Men; Needlework/Sewing/Knitting; Women
Club Management-See Clubs & Associations; Hotel Industry; Parks & Recreation Areas; Restaurants & Catering; Sports & Sporting Goods
Clubs & Associations-See also Ethnic; Religion & Theology; and area of specific interest
Coaching-See Baseball & Softball; Basketball; Education; Football; Golf; Snow & Ice Sports; Sports & Sporting Goods; Tennis & Racquet Sports; Track & Field/Running
Coal & Coke-See Mining & Minerals Coast Guard-See Military & Naval; Ships & Shipping Coffee-See Beverages/Brewing Coin-Operated Machines-See Food & Food Preparation; Laundry/Cleaning & Dyeing; Music & Music Trades; Vending Machines
Coins-See Numismatics Cold Storage-See Agriculture & Agricultural Supplies; Food & Food Preparation; Heating/Plumbing/A.C./Refrig.
Collectibles-See also Hobbies; Antiques & Art Goods Collectors-See Antiques & Art Goods; Art & Sculpture; Collectibles; Jewelry/Clocks & Watches; Numismatics; Philately & Postal Affairs; and field of specific interest
College Alumni-See also Clubs & Associations; Education; Literary Reviews; Literature & Linguistics
College Athletics-See College Alumni; College Student Press; College General; Sports & Sporting Goods; and specific sport
College General-See also College Alumni; College Student Press; School Administration; Sports & Sporting Goods and specific sport
College Student Press-See also Clubs & Associations; College Alumni; Education; Literary Reviews; Poetry & Creative Writing
Combustion-See Chemistry & Chemicals; Engineering/ Chemical; Physics
Comics-See also Humor & Satire Commerce-See Banking & Finance; Business & Industry; International Trade