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1Published 2000Subjects: “...Geophysics Arizona Verde River....”
Government Document Microform Book -
2by Nelson, Philip H.Subjects: “...Geophysical well logging Arizona Casa Grande....”
Published 1991
Government Document Microform Book -
3by Senterfit, R. M.Subjects: “...Prospecting Geophysical methods....”
Published 1985
Government Document Microform Book