Não informado. (2019). Seatrade Business Review. Seatrade Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Seatrade Business Review. Colchester, Inglaterra: Seatrade Publications, 2019.
Lua MLA (8ú heag.)Não informado. Seatrade Business Review. Seatrade Publications, 2019.
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