Cita APA (7a ed.)

Gill, M., Hart, J., & Stevens, J. (1996). Private investigators: Under-researched, under-estimated and under-used? International journal of risk, security and crime prevention, 1(4), 305-314.

Cita Chicago Style (17a ed.)

Gill, M., J. Hart, y J. Stevens. "Private Investigators: Under-researched, Under-estimated and Under-used?" International Journal of Risk, Security and Crime Prevention 1, no. 4 (1996): 305-314.

Cita MLA (8a ed.)

Gill, M., et al. "Private Investigators: Under-researched, Under-estimated and Under-used?" International Journal of Risk, Security and Crime Prevention, vol. 1, no. 4, 1996, pp. 305-314.