000			00545nam a2200229u 4500
001			00759392
003			PWmBRO
005			20240602100930.0
008			241287
090			_b535/N419o/1978
100	1	0	_aNelkon, Michael
245	1	0	_aOptics, waves and sound / _cM. Nelkon.
250	0	0	_a6th ed.
260			_aLondon : _bHeinemann Educational, _c1978.
300			_ap. 343-642.
650	0	0	_aOptics.
650	0	0	_aWaves.
650	0	0	_aSound.
650	0	0	_aLight.
942			_2ddc
994	0	1	_aT1001 048 188
999			_c33978 _d33978