Guidebook to the geology of the Pennsylvania turnpike, by A. B. Cleaves and Geo. H. Ashley.

By: Contributor(s): Material type: TextTextPublication details: Harrisburg, Pa., Dept. of Internal Affairs, Topographic and Geologic Survey, 1942.Description: iv, 37 p. illus. (incl. maps) plates. 23 cmSubject(s): DDC classification:
  • 557.48
LOC classification:
  • QE157 .C55
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