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Geological Survey Bulletin

Geological Survey (U.S.)

出版	U.S. Government Printing Office, 1959
URL	http://books.google.com.hk/books?id=v4IlAQAAIAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋

A geological and geochemical study which supplements previous geophysical studies and compares prospecting techniques for finding copper ore concealed beneath residual soil.