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1
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2by Witkind, Irving J. (Irving Jerome), 1917-2008“...The Survey,...”
Published 1975
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3Published 1981“...The Survey,...”
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4
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5by Witkind, Irving J. (Irving Jerome), 1917-2008“...U.S. Geological Survey,...”
Published 1976
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6by Witkind, Irving J. (Irving Jerome), 1917-2008“...U.S. Geological Survey,...”
Published 1972
Government Document Map -
7by Witkind, Irving J. (Irving Jerome), 1917-2008“...U.S. Geological Survey,...”
Published 1972
Government Document Map -
8by Witkind, Irving J. (Irving Jerome), 1917-2008“...U.S. Geological Survey,...”
Published 1972
Government Document Map -
9by Witkind, Irving J. (Irving Jerome), 1917-2008“...U.S. Geological Survey,...”
Published 1972
Government Document Map -
10by Witkind, Irving J. (Irving Jerome), 1917-2008“...U.S. Geological Survey,...”
Published 1972
Government Document Map -
11by Witkind, Irving J. (Irving Jerome), 1917-2008“...U.S. Geological Survey,...”
Published 1972
Government Document Map -
12by Witkind, Irving J. (Irving Jerome), 1917-2008“...U.S. Geological Survey,...”
Published 1972
Government Document Map -
13Published 1980“...U.S. Dept. of the Interior, Geological Survey,...”
Government Document Book