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Displaying 1-2 of 2 results for author "Harper, John A."
Greater Pittsburgh region: Structure contour map : of Allegheny, Armstrong, Beaver, Butler, Washington, and Westmoreland Counties / by W.R. Wagner [and others].
- Cartographic
- [Reston, Va.] : Published by the U.S. Geological Survey, 1975.
- 1975
- 1 Item
Item details Format Call Number Item Location Map Map Off-site Fossil collecting in Pennsylvania / by Donald M. Hoskins, Jon D. Inners, and John A. Harper ; illustrations by John G. Kuchinski, Albert E. Van Olden, and James H. Dolimpio.
- Text
- Harrisburg, PA : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Office of Resources Management, Bureau of Topographic and Geologic Survey, 1983.
- 1983
- 1 Item
Item details Format Call Number Item Location Book/Text QE747.P4H67 1983 Off-site
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