Buffum, P. C. (1976). The Philadelphia aftercare survey: A summary report. The Pennsylvania Prison Society.
Cita Chicago Style (17a ed.)Buffum, Peter C. The Philadelphia Aftercare Survey: A Summary Report. Philadelphia, Penns: The Pennsylvania Prison Society, 1976.
Cita MLA (9a ed.)Buffum, Peter C. The Philadelphia Aftercare Survey: A Summary Report. The Pennsylvania Prison Society, 1976.
Precaución: Estas citas no son 100% exactas.