Cita APA (7a ed.)
Bartels, E. C. Volunteer Police in the United States: Programs, Challenges, and Legal Aspects. Springer.
Cita estilo Chicago (17a ed.)
Bartels, Elizabeth C. Volunteer Police in the United States: Programs, Challenges, and Legal Aspects. Cham, Suiza: Springer.
Cita MLA (9a ed.)
Bartels, Elizabeth C. Volunteer Police in the United States: Programs, Challenges, and Legal Aspects. Springer.
Precaución: Estas citas no son 100% exactas.