Hack, John Tilton 1913-1991
Geomorphology of the Shenandoah Valley Virginia and West Virginia and origin of the residual ore deposits / by John T. Hack. -- Washington : United States Government Printing Office, 1965 - 84 p. + map. -- (Geological Survey Professional Paper ; 484).
Depósitos de minerales
Geomorfología
Virginia
551.4(755) ; 553(755)
Geomorphology of the Shenandoah Valley Virginia and West Virginia and origin of the residual ore deposits / by John T. Hack. -- Washington : United States Government Printing Office, 1965 - 84 p. + map. -- (Geological Survey Professional Paper ; 484).
Depósitos de minerales
Geomorfología
Virginia
551.4(755) ; 553(755)