1. Balla, D., Butterfield, E. C., & Zigler, E. (1974). Effects of institutionalization on retarded children: A longitudinal cross-institutional investigation. American Journal of Metal Deficiency, 78, 530–549.
2. Bates, E., O’Connell, B., & Shore, C. (1987). Language and communication in infancy. In J. Osofsky (Ed.), Handbook of infant development (2nd ed., pp. 149–204). New York: Wiley.
3. Baumeister, A. A. (Ed.). (1967). Mental retardation: Appraisal,education, and rehabilitation. Chicago: Aldine.
4. Bender, L. (1947). Psychopathic behavior disorders in children. In R. Linderner & R. Seliger (Eds.), Handbook of correctional psychology (pp. 360–377). New York: Philosophical Library.
5. Bender, L., & Yarnell, H. (1941). An observation nursery: A study of 250 children on the Psychiatric Division of Bellevue Hospital. American Journal of Psychiatry, 97, 1158–1174.