Rowley, G. D. (1987). Caudiciform & pachycaul succulents: Pachycauls, bottle-, barrel- and elephant-trees and their kin ; a collector's miscellany (1. ed.). Strawberry Press.
Chicago-Zitierstil (17. Ausg.)Rowley, Gordon D. Caudiciform & Pachycaul Succulents: Pachycauls, Bottle-, Barrel- and Elephant-trees and Their Kin ; a Collector's Miscellany. 1. ed. Mill Valley, Calif: Strawberry Press, 1987.
MLA-Zitierstil (9. Ausg.)Rowley, Gordon D. Caudiciform & Pachycaul Succulents: Pachycauls, Bottle-, Barrel- and Elephant-trees and Their Kin ; a Collector's Miscellany. 1. ed. Strawberry Press, 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.