Cita APA

(1979). Ports of the world 1979 (32 ed.). Benn.

Chicago Edition Citation

Ports of the World 1979. 32 ed. London: Benn, 1979.

Cita MLA

Ports of the World 1979. 32 ed. Benn, 1979.

Atenció: Aquestes cites poden no estar 100% correctes.