APA (7th ed.) Citation

Billings, E. G. (1939). A handbook of elementary psychobiology and psychiatry. Macmillan Company.

Chicago Style (17th ed.) Citation

Billings, Edward G. A Handbook of Elementary Psychobiology and Psychiatry. New York: Macmillan Company, 1939.

MLA (9th ed.) Citation

Billings, Edward G. A Handbook of Elementary Psychobiology and Psychiatry. Macmillan Company, 1939.