Mineralogy associated with burning anthracite deposits of eastern Pennsylvania / by Davis M. Lapham and John H. Barnes, Pennsylvania Geological Survey, Wayne F. Downey, Jr., R.E. Wright Associates, Inc. [and] Robert B. Finkelman, U.S. Geological SurveyDavis M. Lapham · First published 1980Open the Tome
Interpretation of K-Ar and Rb-Sr isotopic dates from a Precambrian basement core, Erie County, Pennsylvania / by Davis M. LaphamDavis M. Lapham · First published 1975Open the Tome
Geology and origin of the Triassic magnetite deposit and diabase at Cornwall, Pennsylvania / by Davis M. Lapham and Carlyle GrayDavis M. Lapham · First published 1973Open the Tome
Summary of isotopic age determinations in Pennsylvania by D.M. Lapham and S.I. Root.Davis M. Lapham · First published 1971Open the Tome
Chemical analyses of three Triassic(?) diabase dikes in Pennsylvania / by Davis M. Lapham and Timothy E. SaylorDavis M. Lapham · First published 1970Open the Tome
Mineralogy associated with burning anthracite deposits of eastern PennsylvaniaDavis M. Lapham · First published 1980Open the Tome
Interpretation of K-Ar and Rb-Sr isotopic dates from a Precambrian basement core, Erie County, PennsylvaniaDavis M. Lapham · First published 1975Open the Tome
Geology and origin of the triassic magnetite deposit and diabase at Cornwall, PennsylvaniaDavis M. Lapham · First published 1973Open the Tome
Summary of isotopic age determinations in PennsylvaniaDavis M. Lapham · First published 1971Open the Tome
Chemical analyses of three Triassic(?) diabase dikes in PennsylvaniaDavis M. Lapham · First published 1970Open the Tome
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