Gardiner, R. (1996). The earliest ships: The evolution of boats into ships. Naval Institute.
Citace podle Chicago (17th ed.)Gardiner, Robert. The Earliest Ships: The Evolution of Boats into Ships. Annapolis: Naval Institute, 1996.
Citace podle MLA (9th ed.)Gardiner, Robert. The Earliest Ships: The Evolution of Boats into Ships. Naval Institute, 1996.
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