http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
problems encountered and what they should teach us
National Aeronautics and Space Administration.
by Milton O. Thompson ; with a background section by J.D. Hunley.
G.P.O. sales statement incorrect in publication.
Includes bibliographical references and index.
Monographs in aerospace history ; no. 22