Cita APA (7th ed.)

Bullough, W. S. (1961). Vertebrate reproductive cycles ([2d ed.].). Methuen.

Cita Chicago (17th ed.)

Bullough, William Sydney. Vertebrate Reproductive Cycles. [2d ed.]. London: Methuen, 1961.

Cita MLA (8th ed.)

Bullough, William Sydney. Vertebrate Reproductive Cycles. [2d ed.]. Methuen, 1961.