http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a critical guide for students and teachers
Mercantile Library Association of the City of New-York
edited by Harold Augenbraum and Margarite Fernández Olmos under the auspices of the Mercantile Library of New York.
Includes bibliographical references and index.