Summary of the mineral- and energy-resource endowment, BLM roswell resource area, east-central New Mexico Susan Bartsch-WinklerD. M. SutphinJ. T. Dutchover Articles Pages: 262 - 283
Relationship between low-grade gold disseminations and high-grade veins in the Quartz Mountain district, Oregon V. F. HollisterD. S. Jennings Articles Pages: 284 - 291
Calculation of the variance of mean values for blocks in regional resource evaluation studies Frederik P. Agterberg Articles Pages: 312 - 324