APA citiranje

Brown, C. R., & Brown, M. B. Testis size increases with colony size in cliff swallows.

Trích dẫn kiểu Chicago

Brown, Charles R., và Mary Bomberger Brown. Testis Size Increases With Colony Size in Cliff Swallows.

MLA citiranje

Brown, Charles R., và Mary Bomberger Brown. Testis Size Increases With Colony Size in Cliff Swallows.