http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Latest issue consulted: September 27, 1985.
Vols. for 1961-19<85> issued by U.S. Dept. of Agriculture, Statistical Reporting Service, Crop Reporting Board.
Crop Reporting Board publications, Room 5829, South Building, U.S. Dept. of Agriculture, Washington, D.C. 20250