Cita APA (7a ed.)

(1972). Pôrto de Natal and approaches. Hydrographic Office of the Admiralty.

Cita Chicago Style (17a ed.)

Pôrto De Natal and Approaches. London: Hydrographic Office of the Admiralty, 1972.

Cita MLA (8a ed.)

Pôrto De Natal and Approaches. Hydrographic Office of the Admiralty, 1972.