000 00431nam a2200181Ia 4500
008 190716s9999||||xx |||||||||||||| ||und||
020 _a0870213636
082 _a623.89 HOB
100 _aHobbs, Richard R
245 _aMarine Navigation 2: Celestial and electronic
250 _a2
260 _aMaryland
260 _bNaval Institute Press
260 _c1981
300 _axiii, 343p.
300 _bHb
650 _aNavigation
999 _c1587
_d1587