Cita APA

Alexis L Romanoff. (1949). The Avian Egg. John Wiley & Sons.

Chicago Edition Citation

Alexis L Romanoff. The Avian Egg. John Wiley & Sons, 1949.

Cita MLA

Alexis L Romanoff. The Avian Egg. John Wiley & Sons, 1949.

Atenció: Aquestes cites poden no estar 100% correctes.