APA (7e ed.) Bronvermelding

Zomlefer, W. B. (1994). Guide to flowering plant families. University of North Carolina Press.

Chicago (17e ed.) Bronvermelding

Zomlefer, Wendy B. Guide to Flowering Plant Families. Chapel Hill: University of North Carolina Press, 1994.

MLA (9e ed.) Bronvermelding

Zomlefer, Wendy B. Guide to Flowering Plant Families. University of North Carolina Press, 1994.