http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Chemical contaminants found in surface and subsurface water as related to soil and climatic conditions
Chlorinated insecticides in runoff water as affected by crop rotation
principal investigators, Eliot Epstein, Roland A. Struchtemeyer.
Work supported in part by U.S. Office of Water Resources Research.
Appendix: Chlorinated insectides in runoff water as affected by crop rotation.