Citazione Stile APA (7a Edizione)

Tepper, R. (1990). The only 250 letters and memos managers will ever need. J. Wiley.

Citazione stile Chigago Style (17a edizione)

Tepper, Ron. The Only 250 Letters and Memos Managers Will Ever Need. New York: J. Wiley, 1990.

Citatione MLA (9a ed.)

Tepper, Ron. The Only 250 Letters and Memos Managers Will Ever Need. J. Wiley, 1990.