APA (7th ed.) Citation

Randle, C. P. (2006). Revision of Harveya (Orobanchaceae) of Southern Africa. American Society of Plant Taxonomists.

Chicago Style (17th ed.) Citation

Randle, Christopher P. Revision of Harveya (Orobanchaceae) of Southern Africa. Ann Arbor, Mich.: American Society of Plant Taxonomists, 2006.

MLA (9th ed.) Citation

Randle, Christopher P. Revision of Harveya (Orobanchaceae) of Southern Africa. American Society of Plant Taxonomists, 2006.