Cita APA (7a ed.)
Gray, C. B. (2007). Philosophy of man at recreation and leisure. P. Lang.
Cita Chicago Style (17a ed.)
Gray, Christopher B. Philosophy of Man at Recreation and Leisure. New York: P. Lang, 2007.
Cita MLA (9a ed.)
Gray, Christopher B. Philosophy of Man at Recreation and Leisure. P. Lang, 2007.
Precaución: Estas citas no son 100% exactas.