Cita APA (7a ed.)

Ayling, J., Grabosky, P. N., & Shearing, C. D. (2008). Lengthening the arm of the law: Enhancing police resources in the Twenty-First Century. Cambridge University Press.

Cita Chicago Style (17a ed.)

Ayling, Julie, Peter N. Grabosky, y Clifford D. Shearing. Lengthening the Arm of the Law: Enhancing Police Resources in the Twenty-First Century. Cambridge [u.a.]: Cambridge University Press, 2008.

Cita MLA (9a ed.)

Ayling, Julie, et al. Lengthening the Arm of the Law: Enhancing Police Resources in the Twenty-First Century. Cambridge University Press, 2008.