Cita APA (7a ed.)

Higgs, S. (2019). A Guide to Natural Areas of Northern Indiana: 125 Unique Places to Explore. Indiana University Press.

Cita Chicago Style (17a ed.)

Higgs, Steven. A Guide to Natural Areas of Northern Indiana: 125 Unique Places to Explore. Bloomington, Indiana: Indiana University Press, 2019.

Cita MLA (8a ed.)

Higgs, Steven. A Guide to Natural Areas of Northern Indiana: 125 Unique Places to Explore. Indiana University Press, 2019.