Lief, H.L : "Subprofessional training in mental health." Archives of General Psychiatry, 1966, 15, 660-664.
2.
Palmbaum, P.J. : "Apprenticeship revisited." Archives of General Psychiatry, 1965, 13, 304-309.
3.
Riessman, F. , and Hallowitz, E.: "The neighborhood service center: An innovation in preventive psychiatry." American Journal of Psychiatry , 1967, 123, 1408-1413.