APA

Fraenkel G. S., Gunn D. L., . (1961). The orientation of animals. New York: Dover.

Chicago

Fraenkel Gottfried S, Gunn Donald L, . 1961. The orientation of animals. New York: Dover.

Harvard

Fraenkel G. S., Gunn D. L., . (1961). The orientation of animals. New York: Dover.

MLA

Fraenkel Gottfried S, Gunn Donald L, . The orientation of animals. New York: Dover. 1961.