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Cretaceous
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Formations (Geology)

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1.
Depositional environments of coal-bearing and associated formations of Cretaceous Age in the National Petroleum Reserve in Alaska
Author
Roehler, Henry W.
Published
Washington : United States Government Printing Office, 1987.
Online
no.1575-1579
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
2.
Depositional environments of coal-bearing and associated formations of Cretaceous age in the National Petroleum Reserve in Alaska
Author
Roehler, Henry W.
Published
[Reston, Va.] : Department of the Interior, U.S. Geological Survey, 1987.
Washington : United States Government Printing Office
Online
http://purl.fdlp.gov/GPO/gpo62311
Location
Yale Internet Resource >> None
Format
Books / Online