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Analytical methods used in geochemical exploration by the U.S. Geological Survey F. N. Ward...(et al) - Washington : United States, 1963 - iv, 100 p. : il. - Geological survey bulletin ; 1152 .

Subjects--Topical Terms:
PROSPECCION GEOQUIMICA
GEOLOGIA--TRABAJO DE CAMPO

Dewey Class. No.: 622.13 / A532