APA

Darwin C., . (1896). The variation of animals and plants under domestication. New York: D. Appleton and Company.

Chicago

Darwin Charles, . 1896. The variation of animals and plants under domestication. New York: D. Appleton and Company.

Harvard

Darwin C., . (1896). The variation of animals and plants under domestication. New York: D. Appleton and Company.

MLA

Darwin Charles, . The variation of animals and plants under domestication. New York: D. Appleton and Company. 1896.