Cita APA (7th ed.)

Walker, E. M. (1953). The Odonata of Canada and Alaska. The University of Toronto.

Cita Chicago (17th ed.)

Walker, E. M. The Odonata of Canada and Alaska. [Toronto]: The University of Toronto, 1953.

Cita MLA (9th ed.)

Walker, E. M. The Odonata of Canada and Alaska. The University of Toronto, 1953.