(1921). Bothalia: A record of contributions from the National Herbarium, University of South Africa, Pretoria. Pretoria: Govt. Print. and Stationery Office.
Dyfyniad Arddull ChicagoBothalia: A Record of Contributions From the National Herbarium, University of South Africa, Pretoria. Pretoria: Govt. Print. and Stationery Office, 1921.
Dyfyniad MLABothalia: A Record of Contributions From the National Herbarium, University of South Africa, Pretoria. Pretoria: Govt. Print. and Stationery Office, 1921.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.