Cita APA (7a ed.)

Ludwig, R. A., & Taylor, R. L. (1966). The Evolution of Canada's Flora. University of Toronto Press.

Cita Chicago Style (17a ed.)

Ludwig, R. A., y Roy L. Taylor. The Evolution of Canada's Flora. [Toronto]: University of Toronto Press, 1966.

Cita MLA (8a ed.)

Ludwig, R. A., y Roy L. Taylor. The Evolution of Canada's Flora. University of Toronto Press, 1966.