APA (7th ed.) Citation

Fuller, C. a., al, I. O. U., & (curator), I. S. U. S. C. a. U. A. (1990). Iowa Birdline update, May 21, 1990.

Chicago Style (17th ed.) Citation

Fuller, Charleset al, Iowa Ornithologists' Unionet al, and Iowa State University. Special Collections and University Archives (curator). Iowa Birdline Update, May 21, 1990. 1990.

MLA (9th ed.) Citation

Fuller, Charleset al, et al. Iowa Birdline Update, May 21, 1990. 1990.