Cita APA (7a ed.)

Backes, D. (1997). Wilderness Within: The Life of Sigurd F. Olson. University of Minnesota Press.

Cita Chicago Style (17a ed.)

Backes, David. Wilderness Within: The Life of Sigurd F. Olson. Minneapolis: University of Minnesota Press, 1997.

Cita MLA (8a ed.)

Backes, David. Wilderness Within: The Life of Sigurd F. Olson. University of Minnesota Press, 1997.