Cita APA (7th ed.)

Bremner, J., Carter, P. J., & Russell, K. A. (2005). Challenge your intelligence. Gramercy Books.

Cita Chicago (17th ed.)

Bremner, John, Philip J. Carter, i Kenneth A. Russell. Challenge Your Intelligence. New York, NY: Gramercy Books, 2005.

Cita MLA (9th ed.)

Bremner, John, et al. Challenge Your Intelligence. Gramercy Books, 2005.