Cita APA (7th ed.)

Zweifel, F. (1961). A handbook of biological illustration. University of Chicago Press.

Cita Chicago (17th ed.)

Zweifel, F.W. A Handbook of Biological Illustration. Chicago, Illinois: University of Chicago Press, 1961.

Cita MLA (9th ed.)

Zweifel, F.W. A Handbook of Biological Illustration. University of Chicago Press, 1961.