Sheldon, B. (1994). SONG RATE AND FERTILITY IN THE CHAFFINCH.
Cita Chicago (17th ed.)Sheldon, B. SONG RATE AND FERTILITY IN THE CHAFFINCH. 1994.
Cita MLA (9th ed.)Sheldon, B. SONG RATE AND FERTILITY IN THE CHAFFINCH. 1994.
Atenció: Aquestes cites poden no estar 100% correctes.