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141
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142
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143
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144
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145by Pederson, G. L.“...U.S. Geological Survey,...”
Published 1980
Government Document Microform Book -
146
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147
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148
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149
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150
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151
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152
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153by Mawad, Mustafa M.“...U.S. Geological Survey,...”
Published 1980
Government Document Microform Book -
154Published 1980“...U.S. Geological Survey,...”
Government Document Map -
155Published 1980“...U.S. Geological Survey,...”
Government Document Map -
156Published 1980“...U.S. Geological Survey,...”
Government Document Map -
157
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158by Broecker, Wallace S., 1931-“...U.S. Geological Survey,...”
Published 1981
Government Document Book -
159by Logan, James Metcalfe, 1954-“...U.S. Geological Survey,...”
Published 1981
Government Document Book -
160