Citazione Stile APA (7a Edizione)

Prochnow, H. V., & Prochnow, H. V. (1966). The successful toastmaster: A treasure chest of introductions, epigrams, humor, and quotations. Harper & Row.

Citazione stile Chigago Style (17a edizione)

Prochnow, Herbert Victor, e Herbert Victor Prochnow. The Successful Toastmaster: A Treasure Chest of Introductions, Epigrams, Humor, and Quotations. New York: Harper & Row, 1966.

Citatione MLA (9a ed.)

Prochnow, Herbert Victor, e Herbert Victor Prochnow. The Successful Toastmaster: A Treasure Chest of Introductions, Epigrams, Humor, and Quotations. Harper & Row, 1966.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.