Stig, T.(2019).Norwegian shipping in the 20th century :Norway's successful navigation of the world's most global industry .Cham, Switzerland:Palgrave Macmillan.
Gaya MLA
Tenold, Stig."Norwegian shipping in the 20th century :Norway's successful navigation of the world's most global industry".Cham, Switzerland:Palgrave Macmillan,2019.Electronic Resource.