Brandenburg, D. M. (2010). National Wildlife Federation field guide to wildflowers of North America. Sterling Pub..
Cita Chicago Style (17a ed.)Brandenburg, David M. National Wildlife Federation Field Guide to Wildflowers of North America. New York: Sterling Pub., 2010.
Cita MLA (8a ed.)Brandenburg, David M. National Wildlife Federation Field Guide to Wildflowers of North America. Sterling Pub., 2010.
Precaución: Estas citas no son 100% exactas.