Cita APA (7a ed.)

Waddington, C. H. (1960). The ethical animal ([1st published].). George Allen & Unwin.

Cita Chicago Style (17a ed.)

Waddington, Conrad Hal. The Ethical Animal. [1st published]. London: George Allen & Unwin, 1960.

Cita MLA (9a ed.)

Waddington, Conrad Hal. The Ethical Animal. [1st published]. George Allen & Unwin, 1960.