National Eutrophication Survey ; Pacific Northwest Environmental Research Laboratory, an associate laboratory of the National Environmental Research Center - Corvallis, Oregon ; and National Environmental Research Center - Las Vegas, Nevada ; with the cooperation of the Minnesota Pollution Control Agency and the Minnesota National Guard
Date
[1975]
Series
Working paper series (National Eutrophication Survey) ; no. 122
National Eutrophication Survey ; Pacific Northwest Environmental Research Laboratory, an associate laboratory of the National Environmental Research Center - Corvallis, Oregon ; and National Environmental Research Center - Las Vegas, Nevada ; with the cooperation of the Minnesota Pollution Control Agency and the Minnesota National Guard
Date
[1975]
Series
Working paper series (National Eutrophication Survey) ; no. 119
National Eutrophication Survey ; Pacific Northwest Environmental Research Laboratory, an associate laboratory of the National Environmental Research Center - Corvallis, Oregon ; and National Environmental Research Center - Las Vegas, Nevada ; with the cooperation of the Minnesota Pollution Control Agency and the Minnesota National Guard
Date
[1975]
Series
Working paper series (National Eutrophication Survey) ; no. 123
U.S. Environmental Protection Agency, National Eutrophication Survey ; [prepared by] Pacific Northwest Environmental Research Laboratory and National Environmental Research Center, Las Vegas, Nevada
Date
1974
Series
Working paper / National Eutrophication Survey ; no. 37
U.S. Environmental Protection Agency, National Eutrophication Survey ; [prepared by] Pacific Northwest Environmental Research Laboratory and National Environmental Research Center, Las Vegas, Nevada
Date
1974
Series
Working paper / National Eutrophication Survey ; no. 46
[U.S. Environmental Protection Agency, National Eutrophication Survey] with the cooperation of the Wisconsin Department of Natural Resources and the Wisconsin National Guard
Date
1975
Series
Working paper / National Eutrophication Survey ; no. 70
U.S. Environmental Protection Agency, National Eutrophication Survey ; [prepared by] Pacific Northwest Environmental Research Laboratory and National Environmental Research Center, Las Vegas, Nevada
Date
1974
Series
Working paper / National Eutrophication Survey ; no. 49