Cita APA (7a ed.)

Unnever, J. D., & Cullen, F. T. (2010). The social sources of Americans' punitiveness. A test of three competing models. Criminology, 48(1), 99-129.

Cita Chicago Style (17a ed.)

Unnever, James D., y Francis T. Cullen. "The Social Sources of Americans' Punitiveness. A Test of Three Competing Models." Criminology 48, no. 1 (2010): 99-129.

Cita MLA (8a ed.)

Unnever, James D., y Francis T. Cullen. "The Social Sources of Americans' Punitiveness. A Test of Three Competing Models." Criminology, vol. 48, no. 1, 2010, pp. 99-129.