APA (7th ed.) Citation

Ries, H., & Gallup, F. L. (1906). The clays of Wisconsin and their uses. Published by the state.

Chicago Style (17th ed.) Citation

Ries, Heinrich, and F. L. Gallup. The Clays of Wisconsin and Their Uses. Madison, Wis.: Published by the state, 1906.

MLA (9th ed.) Citation

Ries, Heinrich, and F. L. Gallup. The Clays of Wisconsin and Their Uses. Published by the state, 1906.