International directory of mental retardation resources

• Other Authors: Dybward, Rosemary F.
• Format: Book
• Language: English
• Published: Washington U.S. Department of Health and Human Services 1989
• Edition: 3nd edition
• Series: Mental retardation resources
• Subjects: Νοητική υστέρηση; Νοητική υστέρηση > Διεθνή κέντρα