Cappell, C. L., & Sykes, G. (1991). Prison commitments, crime, and unemployment: A theoretical and empirical specification for the United States, 1933-1985. Journal of quantitative criminology, 7(2), 155-199.
Chicago-Zitierstil (17. Ausg.)Cappell, Charles L., und Gresham Sykes. "Prison Commitments, Crime, and Unemployment: A Theoretical and Empirical Specification for the United States, 1933-1985." Journal of Quantitative Criminology 7, no. 2 (1991): 155-199.
MLA-Zitierstil (9. Ausg.)Cappell, Charles L., und Gresham Sykes. "Prison Commitments, Crime, and Unemployment: A Theoretical and Empirical Specification for the United States, 1933-1985." Journal of Quantitative Criminology, vol. 7, no. 2, 1991, pp. 155-199.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.