1. Social development in the first year of life: maternal influences on infant-mother attachment;Ainsworth,1975
2. Mother-infant interaction and the development of competence;Ainsworth,1974
3. Gaze, mutual gaze and proximity;Argyle;Semiotica,1972
4. How To Do Things with Words;Austin,1962
5. The acquisition of performatives prior to speech;Bates,1973