The Soil and Water Assessment Tool : historical development, applications, and future research directions /Publisher: Ames, Iowa : Center for Agricultural and Rural Development, Iowa State University,
Date: [2007]. This title can be found in 2 Iowa libraries.
Assessment of non-point source pollution in the vadose zone /Publisher: Washington, DC : American Geophysical Union,
Date: c1999. This title can be found in 2 Iowa libraries.
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