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Bulletin of the United States Geological Survey, Issues 168-172
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Bulletin - United States Geological Survey, Volumes 32-38
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Bulletin - United States Geological Survey, Volumes 128-134
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Bulletin of the United States Geological Survey, Issues 31-36
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Water-Supply and Irrigation Papers of the United States Geological Surve...
Bok av Geological Survey (U S )
Water-Supply and Irrigation Papers of the United States Geological Surve...
Bok av Geological Survey (U S )
Water-Supply and Irrigation Papers of the United States Geological Surve...
Bok av Geological Survey (U S )
Bulletin of the United States Bureau of Labor Statistics, Issues 46-49
Bok av United States Bureau of Labor Statistic

Bulletin of the United States Geological Survey, Issues 121-122

Bok av US Geological Survey Library