1. Veld types of South Africa;Acocks;Mem. Bot. Surv. S. Afr.,1953
2. Veld types of South Africa;Acocks,1975
3. Die ontplooiing van die veekundepotensiaal van die droë gras – bosgemeenskappe in die Oos-Kaap;Aucamp;Proc. Grassld. Soc. sth. Afr.,1980
4. Vegetation gradients in the southern Cape mountains;Bond,1981
5. Field and laboratory methods for general ecology;Brower,1984