http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
proceedings of the 123rd Colloquium of the International Astronomical Union, held in Greenbelt, Maryland, April 24-27, 1990
Includes bibliographical references and index.
Astrophysics and space science library ; v. 166