APA (7th ed.) Citation

Bowditch, N. (1939). American practical navigator: An epitome of navigation and nautical astronomy ((Rev. ed. of 1938).). G. P. O..

Chicago Style (17th ed.) Citation

Bowditch, Nathaniel. American Practical Navigator: An Epitome of Navigation and Nautical Astronomy. (Rev. ed. of 1938). Washington: G. P. O., 1939.

MLA (9th ed.) Citation

Bowditch, Nathaniel. American Practical Navigator: An Epitome of Navigation and Nautical Astronomy. (Rev. ed. of 1938). G. P. O., 1939.