1. Trace elements in magnetic concentrates from stream sediments in southwestern New Mexico : a potential tool for reconnaissance geochemical exploration in arid lands Author/Creator: Lovering, T. G. 1921-1996. (Tom Gray) Publication/Creation: Washington : U.S. G.P.O. ; Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1987 Resource Type: Book Access & Availability: Loading
2. Trace elements in magnetic concentrates from stream sediments in southwestern New Mexico : a potential tool for reconnaissance geochemical exploration in arid lands Author/Creator: Lovering, T. G. 1921-1996. (Tom Gray), author Publication/Creation: [Reston, Va.] : Department of the Interior, Geological Survey, 1987 Resource Type: Book Access & Availability: Loading