Cita APA (7a ed.)

LaFree, G. (1998). The role of institutions in explaining American crime trends. Journal, 237, 18-19.

Cita Chicago Style (17a ed.)

LaFree, Gary. "The Role of Institutions in Explaining American Crime Trends." Journal 237 (1998): 18-19.

Cita MLA (8a ed.)

LaFree, Gary. "The Role of Institutions in Explaining American Crime Trends." Journal, 237, 1998, pp. 18-19.