APA (7th ed.) Citation

Lewis, H. (1955). The genus Clarkia. Univ. of Calif. Press.

Chicago Style (17th ed.) Citation

Lewis, Harlan. The Genus Clarkia. Berkeley [u.a.]: Univ. of Calif. Press, 1955.

MLA (9th ed.) Citation

Lewis, Harlan. The Genus Clarkia. Univ. of Calif. Press, 1955.

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