Ward, M.J., & Carlson, E.A. (1995). Associations among Adult Attachment representations, maternal sensitivity, and infant-mother attachment in a sample of adolescent mothers. Child Development, 66, 69-79.

Ward, M.J., Vaughn, B.E., & Robb, M.D. (1988). Social-emotional adaptation and infant-mother attachment in siblings: Role of the mother in cross-sibling consistency. Child Development, 59, 643-651.