1. Boyd, F.R., Mertzman, S.A. Composition and structure of the Kaapvaal lithosphere, Southern Africa, in: Mysen, B.O. (Ed.), Magmatic Processes. Geochem. Soc. Spec. Publ., pp. 13–24, 1987.
2. A neutron-activation scheme developed for the determination of 42 elements in lunar material;Brunfelt;Talanta,1971
3. Physical properties of the lunar surface;Carrier,1991
4. Petrology of Sedimentary Rocks;Folk,1968
5. Lunar Sourcebook – A User’s Guide to the Moon;Heiken,1991