http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Presidential directives on national security from Truman to Clinton
These documents pertain to all aspects of U.S. national policy--foreign, defense, intelligence and international economic policy--and structure. They were identified, obtained, assembled, and indexed by the National Security Archive. Most were originally issued by the National Security Council.
Accompanied by a guide: Presidential directives on national security from Truman to Clinton. Guide and index.