APA (7th ed.) Citation

Downs, W., & Kohler, C. (1976). Fish of Lake Superior. University of Wisconsin Sea Grant College Program.

Chicago Style (17th ed.) Citation

Downs, Warren, and Christine Kohler. Fish of Lake Superior. Madison: University of Wisconsin Sea Grant College Program, 1976.

MLA (9th ed.) Citation

Downs, Warren, and Christine Kohler. Fish of Lake Superior. University of Wisconsin Sea Grant College Program, 1976.