APA-Zitierstil (7. Ausg.)

(1976). Directory of business and financial services (7. ed.). Special Libraries Assoc.

Chicago-Zitierstil (17. Ausg.)

Directory of Business and Financial Services. 7. ed. New York: Special Libraries Assoc, 1976.

MLA-Zitierstil (9. Ausg.)

Directory of Business and Financial Services. 7. ed. Special Libraries Assoc, 1976.