APA Citation

Lewis, F. H. 1., & Lewis, M. R. E. 1. (1955). The genus Clarkia. Berkeley: University of California Press.

Chicago Style Citation

Lewis, Frank Harlan 1919-2008, and Margaret Ruth Ensign 1919-2017 Lewis. The Genus Clarkia. Berkeley: University of California Press, 1955.

MLA Citation

Lewis, Frank Harlan 1919-2008, and Margaret Ruth Ensign 1919-2017 Lewis. The Genus Clarkia. Berkeley: University of California Press, 1955.

Warning: These citations may not always be 100% accurate.