Cita APA

Gottfredson, R. M., & Hirschi Travis. (1987). Positive Criminology. Sage Publications.

Chicago Edition Citation

Gottfredson, R. Michael, i Hirschi Travis. Positive Criminology. Newbury Park: Sage Publications, 1987.

Cita MLA

Gottfredson, R. Michael, i Hirschi Travis. Positive Criminology. Sage Publications, 1987.