00720cam a22002171a 4500001000800000005001700008008004100025019001200066035001700078035001200095040002600107050001000133100001700143245010700160260003900267300003400306504005300340650003800393650002400431700004700455238331120080118151838.0851113s1958 maua b 001 0 eng d1 a4120164 9000004120164 91583612 aNZOCbengcNZOCdNZOC 4aHV8911 aHutt, Max L.14aThe mentally retarded child :bdevelopment, education, and guidance /cMax L. Hutt, Robert Gwyn Gibby. aBoston :bAllyn and Bacon,cc1958. axii, 334 p. :bill. ;c22 cm. aIncludes bibliographical references and indexes. 0aChildren with mental disabilities 2aMental retardation.1 aGibby, Robert Gwyn,d1916-,ejoint author.