APA (7e ed.) Bronvermelding

Wasserman, P., & McLean, J. (1982). Consultants and consulting organizations directory: A reference guide to concerns and individuals engaged in consultation for business and industry (5th ed.). Gale Research Co..

Chicago (17e ed.) Bronvermelding

Wasserman, Paul, en Janice McLean. Consultants and Consulting Organizations Directory: A Reference Guide to Concerns and Individuals Engaged in Consultation for Business and Industry. 5th ed. Detroit, Mich.: Gale Research Co., 1982.

MLA (8e ed.) Bronvermelding

Wasserman, Paul, en Janice McLean. Consultants and Consulting Organizations Directory: A Reference Guide to Concerns and Individuals Engaged in Consultation for Business and Industry. 5th ed. Gale Research Co., 1982.