Hobbs lhRichard R. (1990). Marine navigation: Piloting and celestial and electronic navigation (3rd ed.). Naval Institute Press.
Chicago Style (17th ed.) CitationHobbs lhRichard R. Marine Navigation: Piloting and Celestial and Electronic Navigation. 3rd ed. Annapolis, Maryland: Naval Institute Press, 1990.
MLA (9th ed.) CitationHobbs lhRichard R. Marine Navigation: Piloting and Celestial and Electronic Navigation. 3rd ed. Naval Institute Press, 1990.
Warning: These citations may not always be 100% accurate.