A new and accurate method of finding a ship's position at sea, by projection on Mercator's chart . The principles of the method being fully explained and illustrated by problems, examples, and plates, with rules for practice, and examples from actual ob
Автор: Thomas H. Sumner, 107 стр., издатель: "Книга по Требованию", ISBN: 978-5-8836-0286-2| Под заказ: | ||||
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4 из 5, 9 голос(-ов).