Quality of Surface Waters of the United States, 1968. Parts 4 and 5. St. Lawrence River Basin, and Hudson Bay and Upper Mississippi River Basins
Courtesy of the U.S. Geological Survey. Online document at http://pubs.usgs.gov/wsp/2094/report.pdf Prepared in cooperation with the States of Illinois, Indiana, Iowa, Michigan, Minnesota, Missouri, Neru York, Ohio, South Dakota, Wisconsin, and with other agencies
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Format: | Report |
Language: | English |
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United States Government Printing Office, Washington
1973
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Online Access: | http://hdl.handle.net/1993/23385 |