1. Geology of the Mbozisyenite-gabbro complex;Brock,1961
2. Structure and geotectonics of the Precambrian;Harpum,1970
3. Si-Al relations in clinopyroxenes from igneous rocks;Kushiro;Am. J. Sci.,1960
4. The role of aluminium in igneous clinopyroxenes with relation to their parentage;Le Bas;Am. J. Sci.,1962