000			00321nam a2200145Ia 4500
008			220314s9999||||xx |||||||||||||| ||und||
080			_a530
100			_aNelkon, M
245		0	_aLight and sound
250			_a3
260			_bHeinemann Educational, London _c1965
300			_a420
650			_aPhysics
942			_cBOOK
999			_c16473 _d16473