Carr, V. A. V. (1959). Mule and hybrid birds. London: Cage birds.
Trích dẫn kiểu ChicagoCarr, V. A. V. Mule and Hybrid Birds. London: Cage birds, 1959.
MLA引文Carr, V. A. V. Mule and Hybrid Birds. London: Cage birds, 1959.
警告：這些引文格式不一定是100％准確.
APA引文