Citazione Stile APA (7a Edizione)

Freedman, B., & Freedman, N. (2002). The search for joyful (Berkley hardcover edition.). Berkley Books.

Citazione stile Chigago Style (17a edizione)

Freedman, Benedict, e Nancy Freedman. The Search for Joyful. Berkley hardcover edition. New York: Berkley Books, 2002.

Citatione MLA (9a ed.)

Freedman, Benedict, e Nancy Freedman. The Search for Joyful. Berkley hardcover edition. Berkley Books, 2002.