Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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