Polski Rejestr Statków. (2006). Rules for classification and construction of inland waterways vessels. Polski Rejestr Statków.
Citazione stile Chigago Style (17a edizione)Polski Rejestr Statków. Rules for Classification and Construction of Inland Waterways Vessels. Gdańsk: Polski Rejestr Statków, 2006.
Citatione MLA (9a ed.)Polski Rejestr Statków. Rules for Classification and Construction of Inland Waterways Vessels. Polski Rejestr Statków, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.