http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Layers and egg production. Annual revisions ... by months
Layers & egg production. Annual revisions ... by months
Eggs, chickens, and turkey series. Layers and egg production
Crop Reporting Board, Statistical Reporting Service, U.S. Dept. of Agriculture, Washington, DC 20250