1. Rare-earth-element compositions of Cenozoic volcanic rocks in the southern Rocky Mountains and adjacent areas Author/Creator: Lipman, Peter W. Publication/Creation: [Reston, Va.] : Dept. of the Interior, U.S. Geological Survey ; Washington : U.S. G.P.O., 1987 Resource Type: Book Access & Availability: Loading
2. Rare-earth-element compositions of Cenozoic volcanic rocks in the southern Rocky Mountains and adjacent areas Author/Creator: Lipman, Peter W., author Publication/Creation: [Reston, Va.] : Department of the Interior, U.S. Geological Survey, 1987 Resource Type: Book Access & Availability: Loading