1. Attachment and Loss, Vol. 1. Attachment;Bowlby,1969
2. The Development of Infant-Mother Attachment;Ainsworth,1973
3. Mother-Infant Interaction and the Development of Competence;Ainsworth,1974
4. Patterns of attachment shown by the infant in interaction with his mother;Ainsworth;Merrill-Palmer Q.,1964
5. Infants in Institutions;Provence,1962