Cita APA (7a ed.)

Bartels, E. C. (2014). Volunteer police in the United States: Programs, challenges, and legal aspects. Springer.

Cita Chicago Style (17a ed.)

Bartels, Elizabeth C. Volunteer Police in the United States: Programs, Challenges, and Legal Aspects. Cham Heidelberg [u.a.]: Springer, 2014.

Cita MLA (8a ed.)

Bartels, Elizabeth C. Volunteer Police in the United States: Programs, Challenges, and Legal Aspects. Springer, 2014.