APA (7th ed.) Citation

Zim, H. S., Gabrielson, I. N., & Irving, J. G. (1956). Birds: A guide to the most familiar American birds. Golden Press.

Chicago Style (17th ed.) Citation

Zim, Herbert S., Ira Noel Gabrielson, and James Gordon Irving. Birds: A Guide to the Most Familiar American Birds. New York: Golden Press, 1956.

MLA (9th ed.) Citation

Zim, Herbert S., et al. Birds: A Guide to the Most Familiar American Birds. Golden Press, 1956.