APA (7th ed.) Citation

Martin, L., & Thwaites, F. T. (1916). The physical geography of Wisconsin. The State.

Chicago Style (17th ed.) Citation

Martin, Lawrence, and F. T. Thwaites. The Physical Geography of Wisconsin. Madison, Wis.: The State, 1916.

MLA (9th ed.) Citation

Martin, Lawrence, and F. T. Thwaites. The Physical Geography of Wisconsin. The State, 1916.