Du Plessis, P. G., & Duncan, G. (1989). Bulbous plants of Southern Africa: A guide to their cultivation and propagation (1. ed., 1. impr.). Tafelberg.
Chicago Style (17th ed.) CitationDu Plessis, P. G., and Graham Duncan. Bulbous Plants of Southern Africa: A Guide to Their Cultivation and Propagation. 1. ed., 1. impr. Cape Town: Tafelberg, 1989.
MLA (9th ed.) CitationDu Plessis, P. G., and Graham Duncan. Bulbous Plants of Southern Africa: A Guide to Their Cultivation and Propagation. 1. ed., 1. impr. Tafelberg, 1989.
Warning: These citations may not always be 100% accurate.