Não informado. (1966). World ports. American Association of Port Authorities.
Style de citation Chicago (17e éd.)Não informado. World Ports. Washington: American Association of Port Authorities, 1966.
Style de citation MLA (8e éd.)Não informado. World Ports. American Association of Port Authorities, 1966.
Attention : ces citations peuvent ne pas être correctes à 100%.