8222

• UCREFRP Catalog Number: 8222
• Author: U.S. Geological Survey.
• Title: Nitrogen and Phosphorus Data for Surface Water in the Upper Colorado River Basin, Colorado, 1980-94.
• USFW Year: 1997.
• USFW - Doc Type: 97-233,
• Copyright Material: NO

U.S. DEPARTMENT OF THE INTERIOR
BRUCE BABBITT, Secretary

U.S. GEOLOGICAL SURVEY

Gordon P. Eaton, Director

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