(1997). Maritime transport and it's role in the national economy. Fundacja Rozwoju Uniwersytetu Gdańskiego.
Citazione stile Chigago Style (17a edizione)Maritime Transport and It's Role in the National Economy. Gdańsk: Fundacja Rozwoju Uniwersytetu Gdańskiego, 1997.
Citatione MLA (9a ed.)Maritime Transport and It's Role in the National Economy. Fundacja Rozwoju Uniwersytetu Gdańskiego, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.