Verlag: Pennsylvania Department of Internal Affairs, Harrisburg, PA, 1966
Erstausgabe
Hardcover. Zustand: Very Good+. First Edition. General Geology Report G 47. Clean red soft covers. Text tight, clean & intact. Illustrated with b/w photomicrographs, maps and four fold out charts in rear pocket. Science, Geology; B/W Photographs; 8vo 8" - 9" tall; 187 pages.
Verlag: Pennsylvania Department of Environment Resources, Harrisburg, PA, 1974
Soft Cover. Zustand: Near Fine. Reprint. ; VG+ red cloth slipcase contains the soft cover Geology Report G 49 accompanied by seven folded charts. Text tight, clean & intact. Both text and charts are in near fine condition. Science, Geology ; Chart & Map Illustrations; 8vo 8" - 9" tall; 156 pages.