Cita APA (7a ed.)

Schlicht, D. W., Nekola, J. C., & Downey, J. C. (2007). The Butterflies of Iowa. University of Iowa Press.

Cita Chicago Style (17a ed.)

Schlicht, Dennis W., Jeffrey C. Nekola, y John C. Downey. The Butterflies of Iowa. Iowa City: University of Iowa Press, 2007.

Cita MLA (8a ed.)

Schlicht, Dennis W., et al. The Butterflies of Iowa. University of Iowa Press, 2007.