APA aipamena

Thommen, T. K. (1968). International legislation on shipping. United Nations.

Chicago Style aipamena

Thommen, T K. International Legislation on Shipping. N.Y: United Nations, 1968.

MLA aipamena

Thommen, T K. International Legislation on Shipping. United Nations, 1968.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.