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- [21] A SPATIAL DECISION-SUPPORT SYSTEM FOR ASSESSING AGRICULTURAL NONPOINT-SOURCE POLLUTION WATER RESOURCES BULLETIN, 1994, 30 (03): : 441 - 452
- [28] EPA INITIATIVES TO REDUCE NONPOINT-SOURCE POLLUTION ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1994, 208 : 98 - AGRO