APA (7th ed.) Citation

Hancock, J., Elliott, H. F. I., Gillmor, R., & Hayman, P. (1978). The herons of the world (1st U.S. ed.). Harper & Row.

Chicago Style (17th ed.) Citation

Hancock, James, Hugh F. I. Elliott, Robert Gillmor, and Peter Hayman. The Herons of the World. 1st U.S. ed. New York: Harper & Row, 1978.

MLA (9th ed.) Citation

Hancock, James, et al. The Herons of the World. 1st U.S. ed. Harper & Row, 1978.