APA (7th ed.) Citation

Morgan, A. H. (1939). Field book of animals in winter. G. P. Putnam and Sons.

Chicago Style (17th ed.) Citation

Morgan, Ann H. Field Book of Animals in Winter. New York: G. P. Putnam and Sons, 1939.

MLA (9th ed.) Citation

Morgan, Ann H. Field Book of Animals in Winter. G. P. Putnam and Sons, 1939.