1. Review of Rb-Sr age measurements from the early Precambrian terrain in the south-eastern Transvaal and Swaziland;Allsopp;Spec Publ geol Soc S Afr,1969
2. Ash-flow tuffs of Precambrian age in Southeast Missouri;Anderson;Missouri geol Surv. Wat. Resour,1970
3. Oxygen isotope geothermometry of mafic igneous rocks;Anderson;J Geol,1971
4. A Discussion on the evolution of the Precambrian crust - The evolution of the early Precambrian crust of Southern Africa
5. Geochronometry of the Eocene volcanic-plutonic episode in Idaho;Armstrong;Northwest Geol,1974