http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 online resource (ii, 53 pages) : color illustrations.
In scope of the U.S. Government Publishing Office Cataloging and Indexing Program (C&I) and Federal Depository Library Program (FDLP).
GPO Cataloging Record Distribution Program (CRDP).
Includes bibliographic references (pages 35-38)
Economic research report (United States. Department of Agriculture. Economic Research Service) ; no. 320