TRIMBLE, Donald E.
Geology of Portland, Oregon and adjacent areas / by Donald E. Trimble. -- Washington : United States Government Printing Office, 1963 - 118 p. + map. -- (Geological Survey Bulletin ; 1119).
Geología
Oregon
55(795)
Geology of Portland, Oregon and adjacent areas / by Donald E. Trimble. -- Washington : United States Government Printing Office, 1963 - 118 p. + map. -- (Geological Survey Bulletin ; 1119).
Geología
Oregon
55(795)