1. Diagnostic evaluation of developmental delay/mental retardation: An overview;Battaglia;Am J Med Genet Part C,2003
2. Reconsidering the construct of mental retardation: Implications of a model of social competence;Greenspan;Am J Ment Retard,1992
3. A manual on terminology and classification in mental retardation;Heber;Am J Ment Defic Suppl,1959
4. Modifications in the manual on terminology and classification in mental retardation;Heber;Am J Ment Defic,1961