APA-referens (7:e uppl.)

Allen, J. (1979). Effective business communication: A practical guide. Goodyear.

Chicago-referens (17:e uppl.)

Allen, Joseph. Effective Business Communication: A Practical Guide. Santa Monica, Calif: Goodyear, 1979.

MLA-referens (9:e uppl.)

Allen, Joseph. Effective Business Communication: A Practical Guide. Goodyear, 1979.