APA (7th ed.) Citation

Illinois. Natural History Survey Division. (1933). Biological notes. Illinois Natural History Survey.

Chicago Style (17th ed.) Citation

Illinois. Natural History Survey Division. Biological Notes. Urbana: Illinois Natural History Survey, 1933.

MLA (8th ed.) Citation

Illinois. Natural History Survey Division. Biological Notes. Illinois Natural History Survey, 1933.

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