Polish Ports Handbook (Szczecin). (1994). Polish Ports Handbook: [maritime economy and industry guide]. PPH.
Citazione stile Chigago Style (17a edizione)Polish Ports Handbook (Szczecin). Polish Ports Handbook: [maritime Economy and Industry Guide]. Szczecin: PPH, 1994.
Citatione MLA (9a ed.)Polish Ports Handbook (Szczecin). Polish Ports Handbook: [maritime Economy and Industry Guide]. PPH, 1994.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.