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2by Foster, Helen Laura, 1919-Subjects: “...Asbestos. fast (OCoLC)fst00818299...”
Published 1969
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3by Foster, Helen Laura, 1919-Subjects: “...Alaska Mineral Resource Assessment Program. fast (OCoLC)fst00617084...”
Published 1987
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4by Holmes, G. William (George William), 1922-, Hopkins, David Moody, 1921-2001, Foster, Helen Laura, 1919-Subjects: “...Mountains. fast (OCoLC)fst01028366...”
Published 1968
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5by Foster, Helen Laura, 1919-Subjects: “...Geology. fast (OCoLC)fst00940627...”
Published 1976
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6Subjects: “...Metamorphic rocks. fast (OCoLC)fst01756662...”
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7Subjects: “...Geochemical prospecting. fast (OCoLC)fst00940335...”
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8
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9by Foster, Helen Laura, 1919-Subjects: “...Geology. fast (OCoLC)fst00940627...”
Published 1979
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10
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11by Foster, Helen Laura, 1919-Subjects: “...Geology. fast (OCoLC)fst00940627...”
Published 1969
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