Harrisburg, PA: Commonwealth of Pennsylvania/Pennsylvania Geological Survey/Bureau of Topographic and Geologic Survey, 1970. First Edition. Softcover. Item #43372
139 pages with tables, graphs, photographs, maps, references and index, plus the required fifteen folded plates. The book is bound in original gray stiff paper covers printed in black. Call number written on the front cover. Plates and book are housed within a slipcase, as issued. Call number and stamps on the side of the slipcase. Very good.