1. Hospitalism: An inquiry into the genesis of psychiatric condition in early childhood;Spitz;Psychoanal Study Child,1945
2. Maternal care and mental health;Bowlby,1952
3. The effects of maternal deprivation: A review of findings and controversy in the context of research strategy;Ainsworth,1962
4. The competent infant: Research and commentary;Stone,1973
5. The amazing newborn (film), Health Sciences Communication Center, Cleveland, 1976, Case Western Reserve University.