APA (7th ed.) Citation

Economic Consulting & Research Systems. editor literario, Sproull, B. J., & Seplaki, L. (1987). ECRS. Directory of unpublished research: Business & economics. Economic Consulting & Research Systems.

Chicago Style (17th ed.) Citation

Economic Consulting & Research Systems. editor literario, Barbara J. Sproull, and Les Seplaki. ECRS. Directory of Unpublished Research: Business & Economics. New York: Economic Consulting & Research Systems, 1987.

MLA (9th ed.) Citation

Economic Consulting & Research Systems. editor literario, et al. ECRS. Directory of Unpublished Research: Business & Economics. Economic Consulting & Research Systems, 1987.