1. Patterns of attachment: A psychological study of the strange situation;Blehar,1978
2. Can early interaction predict? How and how much?;Bakeman,1989
3. The emergence of symbols: Cognition and communication in infancy;Bates,1979
4. From first words to grammar: Individual differences and dissociable mechanisms;Bates,1988
5. Integrating language and gesture in infancy;Bates;Developmental Psychology,1989