Barkhuizen, B. P. (1978). Succulents of South Africa: With specific reference to the succulent families found in the Republic of South Africa and South West Africa. Purnell.
Chicago-Zitierstil (17. Ausg.)Barkhuizen, Ben P. Succulents of South Africa: With Specific Reference to the Succulent Families Found in the Republic of South Africa and South West Africa. Cape Town: Purnell, 1978.
MLA-Zitierstil (9. Ausg.)Barkhuizen, Ben P. Succulents of South Africa: With Specific Reference to the Succulent Families Found in the Republic of South Africa and South West Africa. Purnell, 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.