Jacobs, J. D. (1951). Delinquency prevention procedures of Massachusetts police.
Cita Chicago Style (17a ed.)Jacobs, Joseph David. Delinquency Prevention Procedures of Massachusetts Police. 1951.
Cita MLA (9a ed.)Jacobs, Joseph David. Delinquency Prevention Procedures of Massachusetts Police. 1951.
Precaución: Estas citas no son 100% exactas.