Nel, G. C. (1953). The Gibbaeum handbook: A genus of highly succulent plants, native to South Africa. Blandford Press.
Chicago Style (17th ed.) CitationNel, Gert Cornelius. The Gibbaeum Handbook: A Genus of Highly Succulent Plants, Native to South Africa. London: Blandford Press, 1953.
MLA (9th ed.) CitationNel, Gert Cornelius. The Gibbaeum Handbook: A Genus of Highly Succulent Plants, Native to South Africa. Blandford Press, 1953.
Warning: These citations may not always be 100% accurate.