Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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