APA (7th ed.) Citation

Kessel, E. L. (1939). The embryology of fleas.

Chicago Style (17th ed.) Citation

Kessel, Edward L. The Embryology of Fleas. Washington, 1939.

MLA (9th ed.) Citation

Kessel, Edward L. The Embryology of Fleas. 1939.

Warning: These citations may not always be 100% accurate.