TY - BOOK AU - AU - Yacat, Jay A ED - ED - ED - ED - SN - 9718567437 SN - 2 PY - 0000///46 CY - Quezon City : UP Center for Leadership, Citizenship and Democracy, c2004. PB - KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Voluntarism -- Psychological aspects KW - Altruism KW - sears0 N1 - Includes bibliographical references and index; 5 ER -