APA (7th ed.) Citation

Schwartz, G. M., & Thiel, G. A. (1954). Minnesota's rocks and waters: A geological story. University of Minnesota Press.

Chicago Style (17th ed.) Citation

Schwartz, George M., and George A. Thiel. Minnesota's Rocks and Waters: A Geological Story. Minneapolis: University of Minnesota Press, 1954.

MLA (9th ed.) Citation

Schwartz, George M., and George A. Thiel. Minnesota's Rocks and Waters: A Geological Story. University of Minnesota Press, 1954.