Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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