Polski Rejestr Statków. (2007). Requirements for computer based systems. Polski Rejestr Statków.
Citazione stile Chigago Style (17a edizione)Polski Rejestr Statków. Requirements for Computer Based Systems. Gdańsk: Polski Rejestr Statków, 2007.
Citatione MLA (9a ed.)Polski Rejestr Statków. Requirements for Computer Based Systems. Polski Rejestr Statków, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.