1. Social Groups, Roles and Leadership: An Introduction to the Concepts;Olmstead,1961
2. Role, personality and social structure in the organizational setting;Levinson,1961
3. Toward a General Theory of Action,1951
4. Illness, therapy and the modern urban American family;Parsons,1961
5. The obligation to remain sick;Bursten;Archs gen. Psychiat.,1956