Cita APA (7a ed.)

Sampson, R. J., Laub, J. H., & Doherty, E. E. (2004). On the robustness and validity of groups. Journal of quantitative criminology, 20(1), 37-42.

Cita Chicago Style (17a ed.)

Sampson, Robert J., John H. Laub, y Elaine Eggleston Doherty. "On the Robustness and Validity of Groups." Journal of Quantitative Criminology 20, no. 1 (2004): 37-42.

Cita MLA (8a ed.)

Sampson, Robert J., et al. "On the Robustness and Validity of Groups." Journal of Quantitative Criminology, vol. 20, no. 1, 2004, pp. 37-42.