Description
Item Description:"A cooperative project of the Colorado Agricultural Experiment Station, Department of Soil and Crop Sciences, Department of Bioagricultural Sciences and Pest Management, Colorado State University ... and the USDA-Agriculture Research Service, Natural Resources Research Center, Great Plains Systems Research Unit."
"November 2004"--Cover.
Physical Description:iv, 116 pages : illustrations ; 28 cm.
Also available via Internet.
Bibliography:Includes bibliographical references (pages 108-116) and statistics.