00526cam a22002054a 4500003001000000005001700010008004100027040002500068041000800093044000800101080001000109100002600119245002000145260003800165300002800203490003300231650002100264655001900285700001600304AR-SsjUIB20250716140249.0250429s1948    xxu           000 0 eng d  aAR-SsjUIBcAR-SsjUIB0 aeng  axxu  a550.81 aMckinstry, Hugh Exton10aMining geology.  aNew York :bPrentice-Hall,c1948.  a680 p. :bil. ;c23 cm 0 aPrentice-Hall Geology Series 7aGeología2lemb 7aLibro2unescot1 aStanley, A.