APA (7th ed.) Citation

Illinois. Natural History Survey Division & Karr, J. R. (1986). Assessing biological integrity in running waters: A method and its rationale. Illinois Natural History Survey.

Chicago Style (17th ed.) Citation

Illinois. Natural History Survey Division and James R. Karr. Assessing Biological Integrity in Running Waters: A Method and Its Rationale. [Champaign, Ill.]: Illinois Natural History Survey, 1986.

MLA (9th ed.) Citation

Illinois. Natural History Survey Division and James R. Karr. Assessing Biological Integrity in Running Waters: A Method and Its Rationale. Illinois Natural History Survey, 1986.