Leggette, R. M. (Ralph Maxwell) 1899- creator Foster, Margaret D. (Margaret Dorothy) 1895- Lamar, William L. (William Luther) 1905- Love, S. K. (Samuel Kenneth) 1903- Geological Survey (U.S.) text pau Harrisburg Pa. Dept. of Internal Affairs, Topographic and Geologic Survey 1936 monographic eng

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iv, 215 p. : ill., tables, diagrs., 4 fold. maps (in pocket) ; 24 cm. by R. M. Leggette, with analyses by Margaret D. Foster, W. L. Lamar, and S. K. Love. Prepared in cooperation between the United States Geological Survey and the Pennsylvania Topographic and Geologic Survey. Bibliography: p. 3-5. Groundwater Pennsylvania Geology Pennsylvania GB1025.P4 L4 gs 36000149 DLC 760330 20260227111340.0 gs 36000149