APA ציטוט

Charles & Charles Darwin. (1921). Variation of Animals and Plants under Domestication: V I (2.). John murray.

Chicago Edition Citation

Charles and Charles Darwin. Variation of Animals and Plants Under Domestication: V I. 2. John murray, 1921.

ציטוט MLA

Charles and Charles Darwin. Variation of Animals and Plants Under Domestication: V I. 2. John murray, 1921.