Cita APA (7a ed.)

London, Metropolitan Police Service, London, Metropolitan Police Authority, London Metropolitan Police Service, & London Metropolitan Police Authority. (2002). Joint annual report / Metropolitan Police Service and Metropolitan Police Authority. Metropolitan Police.

Cita Chicago Style (17a ed.)

London, Metropolitan Police Service, Metropolitan Police Authority London, London Metropolitan Police Service, y London Metropolitan Police Authority. Joint Annual Report / Metropolitan Police Service and Metropolitan Police Authority. London: Metropolitan Police, 2002.

Cita MLA (8a ed.)

London, Metropolitan Police Service, et al. Joint Annual Report / Metropolitan Police Service and Metropolitan Police Authority. Metropolitan Police, 2002.