APA (7th ed.) Citation

Walt, J. J. A. v. d. (1980). Pélargoniums du Sud africain.

Chicago Style (17th ed.) Citation

Walt, J J A van der. Pélargoniums Du Sud Africain. 1980.

MLA (9th ed.) Citation

Walt, J J A van der. Pélargoniums Du Sud Africain. 1980.

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