APA (7th ed.) Citation

Ostergren, R. C., & Vale, T. R. (1997). Wisconsin land and life. University of Wisconsin Press.

Chicago Style (17th ed.) Citation

Ostergren, Robert Clifford, and Thomas R. Vale. Wisconsin Land and Life. Madison: University of Wisconsin Press, 1997.

MLA (8th ed.) Citation

Ostergren, Robert Clifford, and Thomas R. Vale. Wisconsin Land and Life. University of Wisconsin Press, 1997.