Cita APA (7a ed.)

Plummer, R. (2009). Outdoor recreation: : an introduction. Routledge : Taylor and Francis.

Cita Chicago Style (17a ed.)

Plummer, Ryan. Outdoor Recreation: : An Introduction. New York ; London: Routledge : Taylor and Francis, 2009.

Cita MLA (9a ed.)

Plummer, Ryan. Outdoor Recreation: : An Introduction. Routledge : Taylor and Francis, 2009.