Cita APA (7a ed.)

Timm, P. (2015). School security: How to build and strengthen a school safety program. Butterworth-Heinemann (Elsevier).

Cita Chicago Style (17a ed.)

Timm, Paul. School Security: How to Build and Strengthen a School Safety Program. Amsterdam Heidelberg [u.a.]: Butterworth-Heinemann (Elsevier), 2015.

Cita MLA (8a ed.)

Timm, Paul. School Security: How to Build and Strengthen a School Safety Program. Butterworth-Heinemann (Elsevier), 2015.