00750cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035002000092040001800112042001200130043001200142050001600154110006200170245005600232260003300288300001700321490002600338650004700364810008000411999001700491gs 15000720 DLC20260227111318.0940914m19121914pau          s000 0 eng    ags 15000720   a(OCoLC)31103501  aDLCcAkUdDLC  apremarc  an-us-pa00aGA61.P4bA51 aPennsylvania.bBureau of Topographic and Geologic Survey.14aThe mineral production of Pennsylvania, 1911, 1913.  aHarrisburg, Pa.c[1912?-14?]  a2 v.c24 cm.1 aIts Reportvno. 8, 11 0aMines and mineral resourceszPennsylvania.1 aPennsylvania.bBureau of Topographic and Geologic Survey.tReport ;v8, 11.  c25572d25572