1. Precipitating stress, crisis theory, and hospitalization in schizophrenia and depression;Beck;Archives of General Psychiatry,1972
2. Lives through time;Block,1971
3. Attachment and loss (Vol. 3). Loss: Sadness and depression;Bowlby,1980
4. Meaning, measurement, and stress of life events;Brown,1974
5. Social origins of depression;Brown,1978