Sommerfeldt, H. A. (1861). Atlas to the elementary and practical principles of the Construction of ships. John Weale.
Chicago-referens (17:e uppl.)Sommerfeldt, Hakon A. Atlas to the Elementary and Practical Principles of the Construction of Ships. London: John Weale, 1861.
MLA-referens (9:e uppl.)Sommerfeldt, Hakon A. Atlas to the Elementary and Practical Principles of the Construction of Ships. John Weale, 1861.
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