Norddeutscher Lloyd. (1909). The progress of German shipbuilding: With special reference to the evolution of the fleet of the Norddeutscher Lloyd. Hobbing & co., g. m. b. h..
Čikaški stil citiranja (17. izdanje)Norddeutscher Lloyd. The Progress of German Shipbuilding: With Special Reference to the Evolution of the Fleet of the Norddeutscher Lloyd. Berlin: Hobbing & co., g. m. b. h., 1909.
MLA način citiranja (8. izdanje)Norddeutscher Lloyd. The Progress of German Shipbuilding: With Special Reference to the Evolution of the Fleet of the Norddeutscher Lloyd. Hobbing & co., g. m. b. h., 1909.
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