G.D. Dunlap, H. S. Dutton-s navigation and piloting. US Naval Institute.
Chicago Style (17th ed.) CitationG.D. Dunlap, H.H. Shufel. Dutton-s Navigation and Piloting. US Naval Institute.
MLA (8th ed.) CitationG.D. Dunlap, H.H. Shufel. Dutton-s Navigation and Piloting. US Naval Institute.
Warning: These citations may not always be 100% accurate.