1. Veld Types of South Africa, 3rd edn;Acocks;Mem. bot. Surv. S. Afr.,1988
2. A phytosociological classification of the Witwatersrand National Botanical Garden;Behr;S. Afr. J. Bot.,1988
3. ’n Plantsosiologiese studie van die Mooirivier-opvanggebied, Transvaal;Bezuidenhout,1988
4. ’n Plantsosiologiese studie van die Verlorenvalei-natuurreservaat, Transvaal;Bloem,1988
5. Plant sociology: The study of plant communities, translated and;Braun-Blanquet,1932