APA (7e ed.) Bronvermelding

ebrary, Inc, & Nobel, P. S. (2002). Cacti: Biology and uses. University of California Press.

Chicago (17e ed.) Bronvermelding

ebrary, Inc, en Park S. Nobel. Cacti: Biology and Uses. Berkeley: University of California Press, 2002.

MLA (9e ed.) Bronvermelding

ebrary, Inc, en Park S. Nobel. Cacti: Biology and Uses. University of California Press, 2002.