Bowditch, N. (1977). American practical navigator ; an epitome of navigation. Gov't. Print. Off.
Chicago-viite (17. p.)Bowditch, Nathaniel. American Practical Navigator ; an Epitome of Navigation. Washington, D. C: Gov't. Print. Off, 1977.
MLA-viite (9. p.)Bowditch, Nathaniel. American Practical Navigator ; an Epitome of Navigation. Gov't. Print. Off, 1977.
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