1. Geochemistry of parts of Upsalquitch, Boland and Two Brooks;Austria,1973
2. Seasonal variations in copper content of stream sediments in British Columbia;Barr;Trans. Am. Inst. Min. Eng.,1963
3. Total error and other criteria in the interpretation of stream sediment data;Bølviken,1973
4. Geology of the Upper St. John and Allagash River Basins, Maine;Boudette;U.S. Geol. Surv., Open File Rep.,1967
5. The determination of sampling and analytical errors in exploration geochemistry;Garrett;Econ. Geol.,1969