Mental retardation / [edited by] Mary Beirne-Smith, Richard F. Ittenbach, James R. Patton. - 6th ed. - Upper Saddle River, N.J. : Merrill/Prentice Hall, c2002. - xviii, 570 p. : ill. ; 24 cm.

Includes bibliographical references and indexes.

0130329908

00051951


Mental retardation.

RC570 / .MEN 2002

362.3