APA (7th ed.) Citation

Illinois. Natural History Survey Division. (1987). Illinois Natural History Survey bulletin. The Survey.

Chicago Style (17th ed.) Citation

Illinois. Natural History Survey Division. Illinois Natural History Survey Bulletin. Champaign, Ill.: The Survey, 1987.

MLA (8th ed.) Citation

Illinois. Natural History Survey Division. Illinois Natural History Survey Bulletin. The Survey, 1987.

Warning: These citations may not always be 100% accurate.