APA-referens

Snodgrass, R. E. (1935). Principles of insect morphology. McGraw-Hill.

Chicago-stil citat

Snodgrass, R E. Principles of Insect Morphology. New York: McGraw-Hill, 1935.

MLA-referens

Snodgrass, R E. Principles of Insect Morphology. McGraw-Hill, 1935.