APA (7th ed.) Citation

Ayars, J. S., Réthi, L., & Fitzgerald Rivers of America Collection. (1968). The Illinois River. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Ayars, James Sterling, Lili Réthi, and Fitzgerald Rivers of America Collection. The Illinois River. New York: Holt, Rinehart and Winston, 1968.

MLA (8th ed.) Citation

Ayars, James Sterling, et al. The Illinois River. Holt, Rinehart and Winston, 1968.