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Search results for "drainage ditch"

Viewing 1 - 20 of 161 results by relevance

Insect-Pest Management and Control  (1969)

Land Use and Wildlife Resources  (1970)

Consensus Study Report

Drinking Water and Health,: Volume 1  (1977)

Consensus Study Report

Safety of Existing Dams: Evaluation and Improvement  (1983)

Consensus Study Report

Soil Conservation: An Assessment of the National Resources Inventory, Volume 2  (1986)

Consensus Study Report

Pesticide Resistance: Strategies and Tactics for Management  (1986)

Consensus Study Report

Responding to Changes in Sea Level: Engineering Implications  (1987)

Improving School Bus Safety: Special Report 222  (1989)

Alternative Agriculture  (1989)

Consensus Study Report

Ground Water Models: Scientific and Regulatory Applications  (1990)

Saragosa, Texas, Tornado May 22, 1987: An Evaluation of the Warning System  (1991)

Consensus Study Report

Malaria: Obstacles and Opportunities  (1991)

Consensus Study Report

Restoration of Aquatic Ecosystems: Science, Technology, and Public Policy  (1992)

Consensus Study Report

Water Transfers in the West: Efficiency, Equity, and the Environment  (1992)

Vetiver Grass: A Thin Green Line Against Erosion  (1993)

Landside Access to U.S. Ports: Special Report 238  (1993)

Consensus Study Report

Wetlands: Characteristics and Boundaries  (1995)