Cita APA (7a ed.)

Zabielska, E. (1965). Gdynia-South America Service. [s.n..

Cita Chicago Style (17a ed.)

Zabielska, E. Gdynia-South America Service. Gdynia: [s.n., 1965.

Cita MLA (9a ed.)

Zabielska, E. Gdynia-South America Service. [s.n., 1965.