Author: Spelman, Allen R.
Title: Stratigraphy of Lower Ordovician Nittany Dolomite in Central Pennsylvania
Description: Harrisburg, Pennsylvania Geological Survey, 1966. Softcover. Extremities lightly worn; stamp on front cover; pocket inside rear cover detached but present with all folding plates; otherwise very good condition. 186p. Illus. General Geology Report, G 47. .

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