http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
The Role of the Library of Congress in the International exchange of official publications
STEVENS, Robert D.: -- The Role of the Library of Congress -- in the International exchange of of- -- ficial publications. A brief history. -- Washington: The Library of Congress -- 1953. 85 S., 4° [Maschinenschr. autogr.] -- 1953:160l. -- Schi.