APA (7th ed.) Citation

Heilmann, R. L., Mayer, H. M., & Schenker, E. (1986). Great Lakes transportation in the eighties. University of Wisconsin Sea Grant Institute.

Chicago Style (17th ed.) Citation

Heilmann, Ronald L., Harold M. Mayer, and Eric Schenker. Great Lakes Transportation in the Eighties. Madison, WI: University of Wisconsin Sea Grant Institute, 1986.

MLA (9th ed.) Citation

Heilmann, Ronald L., et al. Great Lakes Transportation in the Eighties. University of Wisconsin Sea Grant Institute, 1986.