Singer, J. (2012). Pay it forward: The effect of social support on crime.
Cita Chicago Style (17a ed.)Singer, Jessica. Pay It Forward: The Effect of Social Support on Crime. 2012.
Cita MLA (8a ed.)Singer, Jessica. Pay It Forward: The Effect of Social Support on Crime. 2012.
Precaución: Estas citas no son 100% exactas.