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A vast directory of consulting firms in all areas, including business services, economic research, management, marketing, quality control, real estate, and sales. Among its various indexes is one for principal executives and consultants.
D&B Consultants Directory. Dun & Bradstreet, 1998- . Annual. (DANA REF HD 69 .C6 D86)
This large volume lists more than 30,000 firms alphabetically, with an index for consulting specialty and another by location.
Directory of Management Consultants. Kennedy Publications, 1990- . Biennial. (DANA REF HD 69 .C6 I57A)
Lists management consulting firms with their key principals.