Citazione Stile APA (7a Edizione)

Hopkins, D., & Putnam, R. (1993). Personal growth through adventure. D. Fulton.

Citazione stile Chigago Style (17a edizione)

Hopkins, David, e Roger Putnam. Personal Growth Through Adventure. London: D. Fulton, 1993.

Citatione MLA (9a ed.)

Hopkins, David, e Roger Putnam. Personal Growth Through Adventure. D. Fulton, 1993.