Citazione APA

Gregg, J. R., Fries, A. C., Rowe, M. F., & Travis, D. L. (1968). Applied secretarial practice (6th ed.). Gregg Division, McGraw-Hill.

Stile di citazione Chicago

Gregg, John Robert, Albert C. Fries, Margaret Forcht Rowe, e Dorothy L. Travis. Applied Secretarial Practice. 6th ed. New York: Gregg Division, McGraw-Hill, 1968.

Citazione MLA

Gregg, John Robert, et al. Applied Secretarial Practice. 6th ed. Gregg Division, McGraw-Hill, 1968.