http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
National bioengineered food disclosure standard
NBFDS - instructions on testing method selection
National bioengineered food disclosure standard (United States. Agricultural Marketing Service)
GPO Cataloging Record Distribution Program (CRDP).
Includes bibliographical references (page 4).