APA (7th ed.) Citation

Christiansen, P., & Müller, M. (1999). An illustrated guide to Iowa prairie plants. University of Iowa Press.

Chicago Style (17th ed.) Citation

Christiansen, Paul, and Mark Müller. An Illustrated Guide to Iowa Prairie Plants. Iowa City: University of Iowa Press, 1999.

MLA (9th ed.) Citation

Christiansen, Paul, and Mark Müller. An Illustrated Guide to Iowa Prairie Plants. University of Iowa Press, 1999.