Cita APA (7th ed.)

Martin, J. P., & Wilson, G. (1969). The police: A study in manpower; the evolution of the service in England and Wales, 1829 - 1965. Heinemann.

Cita Chicago (17th ed.)

Martin, John Powell, i Gail Wilson. The Police: A Study in Manpower; the Evolution of the Service in England and Wales, 1829 - 1965. London: Heinemann, 1969.

Cita MLA (9th ed.)

Martin, John Powell, i Gail Wilson. The Police: A Study in Manpower; the Evolution of the Service in England and Wales, 1829 - 1965. Heinemann, 1969.