APA (7th ed.) Citation

Changnon, S. A., & Wilson, J. W. (1971). Heavy rain, hail, and tornadoes on 15 May 1968. Illinois Dept. of Registration and Education, Illinois State Water Survey.

Chicago Style (17th ed.) Citation

Changnon, Stanley A., and John W. Wilson. Heavy Rain, Hail, and Tornadoes on 15 May 1968. Urbana: Illinois Dept. of Registration and Education, Illinois State Water Survey, 1971.

MLA (9th ed.) Citation

Changnon, Stanley A., and John W. Wilson. Heavy Rain, Hail, and Tornadoes on 15 May 1968. Illinois Dept. of Registration and Education, Illinois State Water Survey, 1971.