Big Snowy and Amsden Groups and the Mississippian-Pennsylvanian Boundary in Montana. Geological Survey Professional Paper 554-B

Maughan, Edwin K. & Albert E. Roberts / Washington: GPO 1967
27 pp., quarto, illustrated, maps in envelope at back, minor ownership markings, in all good-very good. Volumes Included: 1

ISBN: NA
Subject/Keywords: Geology Geography Paleontology Travel Americana Mining

Item #: 266676

$7.14

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