Cita APA (7a ed.)

Traung, J. (1960). Fishing boats of the world: 2 (NULL.).

Cita Chicago Style (17a ed.)

Traung, Jan-Olof. Fishing Boats of the World: 2. NULL. London, 1960.

Cita MLA (8a ed.)

Traung, Jan-Olof. Fishing Boats of the World: 2. NULL. 1960.