APA استشهاد

Weaver, R. F. . .., & Hedrick , P. W. . .. (1997). Genetics. Wm C Brown.

استشهاد بنمط شيكاغو

Weaver, Robert F ., و Philip W. Hedrick. Genetics. Dubuque: Wm C Brown, 1997.

MLA استشهاد

Weaver, Robert F ., و Philip W. Hedrick. Genetics. Wm C Brown, 1997.