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2. : Individual differences in parental sensitivity: origins, components, and consequences. In & (Eds), Infant social cognition: empirical and theoretical considerations. Hillsdale, NJ, Lawrence Erlbaum, 1981.
3. : Working with parents and infants: An interactional approach. Baltimore, University Press, 1981.
4. : Prelinguistic communication skills in Down's syndrome and normal infants, in (Ed), High risk infants and children: Adult and peer interactions. New York, Academic Press, 1980.