1. The nature of chrysotile asbestos occurrences in southern Africa — a review;Anhaeusser,1974
2. The geology, geochemistry, and origin of the gold deposits of the Yellowknife District;Boyle;Geol. Surv. Can. Mem.,1961
3. Sample size and meaningful gold analysis;Clifton;U.S. Geol. Surv., Prof. Pap.,1969
4. Some thoughts on chemical transport processes with particular reference to gold;Fyfe;Miner. Sci. Eng.,1973
5. Distribution of gold in igneous rocks;Gottfried;U.S. Geol. Surv., Prof. Pap.,1972