APA-referens (7:e uppl.)

Smith, J. P., & Simpson, K. (2014). Field guide to grasses of California. University of California Press.

Chicago-referens (17:e uppl.)

Smith, James P., och Kathy Simpson. Field Guide to Grasses of California. Oakland, California: University of California Press, 2014.

MLA-referens (9:e uppl.)

Smith, James P., och Kathy Simpson. Field Guide to Grasses of California. University of California Press, 2014.