Editore: Pennsylvania Geological Survey / Bureau of Topographic and Geologic Survey, 1961
Da: Eryops Books, Stephenville, TX, U.S.A.
Soft cover. Condizione: Good. ORIGINAL 1961 PUBLICATION; softcover; ex-corporate library; includes 7 large folded plates in rear pocket (COMPLETE for this publication); rear hinge reinforced w/ tape; foxing spots on endpages and edges; a couple of sentences underlined; small hole at top of one folded plate; otherwise in good condition. Book.
Editore: Pennsylvania Bureau of Topographic and Geologic Survey, Harrisburg, 1958
Da: Mullen Books, ABAA, Marietta, PA, U.S.A.
Staplebound. A staplebound book with white wraps. 1-46 pages. VG: Exlibrary book. The staples are rusted. Pen notation and stamp on the front cover. Stamp on the back of the map. Tanning to the pages, but they remain easy to read.