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121by Chafin, Daniel T.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1996
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122Published 1996“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
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123by Tobin, Robert L.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1996
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124by Ferguson, Sheryl“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1996
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125by Butler, David L. (David Louis), 1946-“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1996
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126Published 1995“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
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127Published 1994“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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128Published 1996“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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129by Stogner, Robert W.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1997
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130by Clark, Melanie L.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1997
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131by Church, S. E.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 1995
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132by Gettings, Paul E.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 1995
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133by Hills, Francis Allan“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 1995
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134by Butler, David L. (David Louis), 1946-“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1997
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135by Bruce, Breton W.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1997
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136by Dash, R. G.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1997
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137by Lull, Kenneth J.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1996
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138by Ingersoll, George P.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1996
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139by Stephens, Verlin C.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 1998
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140by Desborough, George A.“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
Published 1995
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