APA (7th ed.) Citation

Crissy, W. J. E., Cunningham, I. C. M., & Cunningham, W. H. (1977). Effective selling: A short course for professionals. Wiley.

Chicago Style (17th ed.) Citation

Crissy, William Joseph Eliot, Isabella C. M. Cunningham, and William Hughes Cunningham. Effective Selling: A Short Course for Professionals. New York: Wiley, 1977.

MLA (9th ed.) Citation

Crissy, William Joseph Eliot, et al. Effective Selling: A Short Course for Professionals. Wiley, 1977.