APA (7th ed.) Citation

Worden, A. N. (1956). Functional anatomy of birds (First edition.). Cage Birds.

Chicago Style (17th ed.) Citation

Worden, Alastair N. Functional Anatomy of Birds. First edition. London: Cage Birds, 1956.

MLA (9th ed.) Citation

Worden, Alastair N. Functional Anatomy of Birds. First edition. Cage Birds, 1956.