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Type: BOOK - Published: 1986 - Publisher:
This circular describes sources of United States Geological Survey (USGS) information and lists, in tabular form, USGS products and their sources, and tells how
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Type: BOOK - Published: 1978 - Publisher:
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Type: BOOK - Published: 1978 - Publisher:
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Type: BOOK - Published: 1979 - Publisher:
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