00894cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040002400111042001200135050001600147100004300163245009100206260009500297300003600392490006600428500007000494650004700564830002400611999001700635gs 38000043 DLC20260227111342.0750613s1933    paua          000 0 eng    ags 38000043   a(OCoLC)1391746  aDLCcOTdOCoLCdDLC  apremarc00aTN24.P4bA71 aAshley, Geo. H.q(George Hall),d1866-14aThe undeveloped mineral resources of Pennsylvania /cintroduction by George H. Ashley.  aHarrisburg, Pa. :bDepartment of internal affairs, Topographic and geologic survey,c1933.  a16 p. :bincl. tables ;c23 cm.1 aPennsylvania. Geological survey, 4th (1919-  ) Bulletin M18-A  aAt head of title: Pennysylvania Geological survey, Fourth series. 0aMines and mineral resourceszPennsylvania. 0aBulletin M ;v18-A.  c27414d27414