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Published
[Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1991.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
Hail, William J. (William James), Jr., 1922-
Published
Washington : United States Government Printing Office, 1977.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online
Author
O'Sullivan, Robert Brett, 1923-
Published
Washington : United States Government Printing Office, 1975.
Online
Location
HathiTrust Digital Library >> Online Resource
Format
Books / Online