http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
United States Department of Agriculture, Food Safety and Inspection Service, Inspection Operations, Regulatory Programs.
"This publication replaces the June 1991 thru July 1993 Standards and labeling policy book"--P.i.
"Published every five years with one update published each year"--P.i.