Cita APA (7th ed.)

McDonald, P. (2012). The philosophy of humour. HEB Humanities E-Books.

Cita Chicago (17th ed.)

McDonald, Paul. The Philosophy of Humour. Penrith, CA: HEB Humanities E-Books, 2012.

Cita MLA (9th ed.)

McDonald, Paul. The Philosophy of Humour. HEB Humanities E-Books, 2012.