APA (7th ed.) Citation

Graber, J. W., Graber, J. W., Graber, R. R., Graber, R. R., Kirk, E. L., & Kirk, E. L. (1979). Illinois birds. State of Illinois, Dept. of Registration and Education, Natural History Survey Division, Illinois Natural History Survey.

Chicago Style (17th ed.) Citation

Graber, Jean W., Jean W. Graber, Richard R. Graber, Richard R. Graber, Ethelyn L. Kirk, and Ethelyn L. Kirk. Illinois Birds. Urbana, Ill: State of Illinois, Dept. of Registration and Education, Natural History Survey Division, Illinois Natural History Survey, 1979.

MLA (9th ed.) Citation

Graber, Jean W., et al. Illinois Birds. State of Illinois, Dept. of Registration and Education, Natural History Survey Division, Illinois Natural History Survey, 1979.