Symmetry of northern Appalachian foreland fold

von Sherill, Richard Ellis
Veröffentlicht 1934

Oil and gas field property line maps of the Hilliards quadrangle, Pennsylvania

von Sherrill, Richard Ellis
Veröffentlicht 1946

˜Theœ detection of mordants by energy dispersive x-ray spectrometry

von Indictor, Norman
Veröffentlicht in Journal of the American Institute for Conservation / American Institute for Conservation of Historic and Artistic Works <Washington, DC> (1985)

˜Theœ detection of metallic mordants by energy dispersive x-ray spectrometry

von Indictor, Norman
Veröffentlicht in Journal of the American Institute for Conservation / American Institute for Conservation of Historic and Artistic Works <Washington, DC> (1985)

Oil and gas geology of the Oil City quadrangle, Pennsylvania

von Dickey, Parke Atherton
Veröffentlicht 1943