[ نُشرت في: Pollution ]
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النتائج 171 - 178 من 178
Identifying sources of subsurface nitrate pollution with stable nitrogen isotopes
1979
Wolterink, Timothy J.
National Agricultural Library - United States of America
Effectiveness of soil and water conservation practices for pollution control
1979
Haith, Douglas A. | Loehr, Raymond C.
National Agricultural Library - United States of America
Costs and water quality impacts of reducing agricultural nonpoint source pollution | Technical Report Archive & Image Library (TRAIL)
1979
National Agricultural Library - United States of America
Oxidant air pollution impact to the forests of eastern United States
1979
Skelly, John M. | Johnston, J. William
National Agricultural Library - United States of America
Multimedia assessment of pollution potentials of non-sulfur chemical pulping technology
1979
Dallons, Victor J.
National Agricultural Library - United States of America
Proceedings of a Workshop on Scientific Problems Relating to Ocean Pollution, Estes Park, Colorado, July 10-14, 1978 | Scientific problems relating to ocean pollution
1979
Goldberg, Edward D.
National Agricultural Library - United States of America
Institutional bases for control of nonpoint source pollution under the Clean Water Act, with emphasis on agricultural nonpoint sources
1979
Holmes, Beatrice Hort
National Agricultural Library - United States of America
Proceedings of the 1979 U.S. Fish and Wildlife Service Pollution Response Workshop, 8-10 May 1979, St. Petersburg, Florida
1979
Brown, Columbus H.
National Agricultural Library - United States of America
