Subsurface geology and coal resources of the Pennsylvanian system in certain counties of the Illinois basin
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Word Count
37,750 words, Guess
Page Count
151 pages
Identifiers
- OCLC Control Number4209278
- Open LibraryOL43853079M
Classifications
- DDC557.73
- LCCQE105 .A25 no.148
Subjects
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