APA (7th ed.) Citation

Thiel, G. A. (1947). The geology and underground waters of northeastern Minnesota. Univ. of Minnesota Press.

Chicago Style (17th ed.) Citation

Thiel, George A. The Geology and Underground Waters of Northeastern Minnesota. Minneapolis: Univ. of Minnesota Press, 1947.

MLA (9th ed.) Citation

Thiel, George A. The Geology and Underground Waters of Northeastern Minnesota. Univ. of Minnesota Press, 1947.

Warning: These citations may not always be 100% accurate.