Cita APA (7a ed.)

Murphy, H. A., & Hildebrandt, H. W. (1988). Effective business communications (5th. ed.). McGraw-Hill Book.

Cita Chicago Style (17a ed.)

Murphy, Herta A., y Herbert W. Hildebrandt. Effective Business Communications. 5th. ed. New York: McGraw-Hill Book, 1988.

Cita MLA (9a ed.)

Murphy, Herta A., y Herbert W. Hildebrandt. Effective Business Communications. 5th. ed. McGraw-Hill Book, 1988.