1. Lead-alpha ages of the Mesozoic batholiths of western North America Author/Creator: Larsen, Esper S. 1879-1961, (Esper Signius), author Publication/Creation: Washington, D.C. : United States Department of the Interior, Geological Survey, 1958 Resource Type: Book Access & Availability: Loading
2. Lead-alpha ages of the Mesozoic batholiths of western North America Publication/Creation: Washington [D.C.] : U.S. G.P.O., 1958 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 1070. Access & Availability: Loading
3. Lithium resources of North America Author/Creator: Norton, James J. 1918-2005. (James Jennings) Publication/Creation: Washington [D.C.] : U.S. G.P.O., 1955 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 1027 E-J. Access & Availability: Loading