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Geology of the Dallas and Valsetz Quadrangles, Oregon
Elton Albert Youngberg
Ewart Merlin Baldwin
Fay Wilmott Libbey
John Eliot Allen
William Donald Wilkinson
William Henry Twenhofel
Wallace Dean Lowry
Ralph S. Mason
出版
State of Oregon, Department of Geology and Mineral Industries
, 1944
URL
http://books.google.com.hk/books?id=2-UlXascHtYC&hl=&source=gbs_api