Cita APA (7a ed.)

Foster, W. C. (2017). Observing & drawing animals (1st edition.). Walter Foster Publishing.

Cita Chicago Style (17a ed.)

Foster, Walter Charles. Observing & Drawing Animals. 1st edition. Lake Forest, California: Walter Foster Publishing, 2017.

Cita MLA (9a ed.)

Foster, Walter Charles. Observing & Drawing Animals. 1st edition. Walter Foster Publishing, 2017.