Marvin, M. (1976). Planning assistance programs to reduce school violence and disruption. Research for Better Schools.
Cita Chicago Style (17a ed.)Marvin, Michael. Planning Assistance Programs to Reduce School Violence and Disruption. Philadelphia: Research for Better Schools, 1976.
Cita MLA (9a ed.)Marvin, Michael. Planning Assistance Programs to Reduce School Violence and Disruption. Research for Better Schools, 1976.
Precaución: Estas citas no son 100% exactas.