00482nam a2200145Ia 4500 151021s9999 xx 000 0 und d HM 291.M864 1973 _Community Psychology and Social Systems A Conceptual Framework and intervention Guide / Murrell Stanley A. New York : Behavioral , 1973 xi,287 p. Includes index Includes index _Social Psychology ^d20130610 11:16:30^oanne 14095 14095