Cita APA (7a ed.)

Pearson, A. M., & Crane, P. R. (2017). Force of Nature: George Fell, Founder of the Natural Areas Movement. University of Wisconsin Press.

Cita Chicago Style (17a ed.)

Pearson, Arthur Melville, y Peter R. Crane. Force of Nature: George Fell, Founder of the Natural Areas Movement. Chicago: University of Wisconsin Press, 2017.

Cita MLA (8a ed.)

Pearson, Arthur Melville, y Peter R. Crane. Force of Nature: George Fell, Founder of the Natural Areas Movement. University of Wisconsin Press, 2017.