1. Rb-Sr measurements on various Swaziland granites;Allsopp;J. Geophys. Res.,1962
2. Dating some significant events in the history of the Swaziland System by the Rb-Sr isochron method;Allsopp;Can. J. Earth Sci.,1968
3. Review of Rb-Sr age measurements from the early Precambrian terrain in the south-eastern Transvaal and Swaziland;Allsopp;Geol. Soc. S. Afr., Spec. Publ.,1969
4. Strontium isotopic studies of the mafic and felsic rocks of the Onverwacht Group of the Swaziland Sequence;Allsopp,1972
5. Wrench faulting and its relationship to gold mineralization in the Barberton Mountain Land;Anhaeusser;Econ. Geol. Res. Unit, Univ. Witwatersrand, Info. Circ.,1965