http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
prediction and control : the proceedings of a National Conference on Soil Erosion, May 24-26, 1976, Purdue University, West Lafayette, Indiana
National Conference on Soil Erosion (1976 : Purdue University)
xiii, 393 pages : illustrations ; 26 cm.
Special publication (Soil Conservation Society of America) ; no. 21