Cita APA (7a ed.)

Urquhart, F. A. (1960). The Monarch Butterfly. University of Toronto Press.

Cita Chicago Style (17a ed.)

Urquhart, Fred A. The Monarch Butterfly. [Toronto]: University of Toronto Press, 1960.

Cita MLA (8a ed.)

Urquhart, Fred A. The Monarch Butterfly. University of Toronto Press, 1960.