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81Published 1981“...U.S. Geological Survey,...”
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82Published 1981“...U.S. Geological Survey,...”
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83Published 1981“...U.S. Geological Survey,...”
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84Published 1981“...U.S. Geological Survey,...”
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85Published 1981“...U.S. Geological Survey,...”
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86Published 1981“...U.S. Geological Survey,...”
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87by Trask, N. J. (Newell Jefferson)“...U.S. Geological Survey,...”
Published 1969
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88Published 1975“...U.S. Geological Survey,...”
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89Published 1982“...U.S. Geological Survey,...”
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90Published 1984“...U.S. Geological Survey,...”
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91Published 1983“...U.S. Geological Survey,...”
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92Published 1979“...U.S. Geological Survey,...”
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93Published 1980“...U.S. Geological Survey,...”
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94Published 1982“...U.S. Geological Survey,...”
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95Published 1982“...U.S. Geological Survey,...”
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96Published 1982“...U.S. Geological Survey,...”
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97Published 1983“...U.S. Geological Survey,...”
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98Published 1982“...U.S. Geological Survey,...”
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99Published 1982“...U.S. Geological Survey,...”
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100Published 1982“...U.S. Geological Survey,...”
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