RT Map DB /z-wcorg/ DS http://worldcat.org ID 41550471 LA English T1 Geologic map of the Greer quadrangle, Oregon County, Missouri A1 Geological Survey (U.S.) A1 McDowell, Robert C., PB U.S. Geological Survey ; Information Services [distributor] PP [Reston, Va.]; Denver, CO YR 1998 SN 0607917725 9780607917727