http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
San Joaquin Valley drainage investigation: quality and treatment studies through December 31, 1967
Bio-engineering aspects of agricultural drainage
Federal Water Pollution Control Administration.
"Bio-engineering aspects of agricultural drainage."
Bulletin (California. Department of Water Resources) ; no. 174-2