[U.S. Environmental Protection Agency, National Eutrophication Survey] ; with the cooperation of the Delaware Department of Natural Resources and Environmental Control and the Delaware National Guard
Date
[1975]
Series
Working paper (United States. National Eutrophication Survey) ; no. 237
[U.S. Environmental Protection Agency, National Eutrophication Survey] ; with the cooperation of the Delaware Department of Natural Resources and Environmental Control and the Delaware National Guard
Date
[1975]
Series
Working paper (United States. National Eutrophication Survey) ; no. 240
[U.S. Environmental Protection Agency, National Eutrophication Survey] ; with the cooperation of the Delaware Department of Natural Resources and Environmental Control and the Delaware National Guard
Date
[1975]
Series
Working paper (United States. National Eutrophication Survey) ; no. 241
Project Team, John Paul Tolson ... [and others] ; a cooperative project between U.S. Department of Commerce, National Oceanic and Atmospheric Administration and State of Delaware, Department of Natural Resources and Environmental Control
[U.S. Environmental Protection Agency, National Eutrophication Survey] ; with the cooperation of the Delaware Department of Natural Resources and Environmental Control and the Delaware National Guard
Date
[1975]
Series
Working paper (United States. National Eutrophication Survey) ; no. 242
[U.S. Environmental Protection Agency, National Eutrophication Survey] ; with the cooperation of the Delaware Department of Natural Resources and Environmental Control and the Delaware National Guard
Date
[1975]
Series
Working paper (United States. National Eutrophication Survey) ; no. 238
[U.S. Environmental Protection Agency, National Eutrophication Survey] ; with the cooperation of the Delaware Department of Natural Resources and Environmental Control and the Delaware National Guard
Date
[1975]
Series
Working paper (United States. National Eutrophication Survey) ; no. 239