000			00417nam a2200145Ia 4500
999			_c2986 _d2986
008			200103s 1990 ||||xx |||||||||||||| ||und||
020			_a9780870212949
082			_a623.89 _bHOB
100			_aHobbs, Richard R.
245		0	_aMarine navigation : piloting and celestial and electronic navigation
250			_a3rd Ed.
260			_bAirlife Publishing Ltd. _c1990 _aEngland
300			_axvi, 703p.
942			_cBK