Cita APA (7a ed.)

Jeffords, M. R., & Post, S. L. (2014). Exploring Nature in Illinois: A Field Guide to the Prairie State. University of Illinois Press.

Cita Chicago Style (17a ed.)

Jeffords, Michael R., y Susan L. Post. Exploring Nature in Illinois: A Field Guide to the Prairie State. Urbana: University of Illinois Press, 2014.

Cita MLA (8a ed.)

Jeffords, Michael R., y Susan L. Post. Exploring Nature in Illinois: A Field Guide to the Prairie State. University of Illinois Press, 2014.