Dunlap, G. D. 1923-
Dutton's navigation and piloting / G. D. Dunlap and H. H. Shufeldt. - 12th ed. - Annapolis, MD : United States Naval Institute, c1969. - 715, ii, 25 p. ill., charts, maps.
Original edition by: Benjamin Dutton.
Navigation.
Nautical astronomy.
Dutton's navigation and piloting / G. D. Dunlap and H. H. Shufeldt. - 12th ed. - Annapolis, MD : United States Naval Institute, c1969. - 715, ii, 25 p. ill., charts, maps.
Original edition by: Benjamin Dutton.
Navigation.
Nautical astronomy.