http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Margaret S. Mahler Symposium on Child Development 1990 : Philadelphia, Pa.)
edited by Selma Kramer and Salman Akhtar.
Papers from the 21st Annual Margaret S. Mahler Symposium on Child Development, held in Philadelphia, May 19, 1990.
Includes bibliographical references and index.