000			00366nam a2200157Ia 4500
008			230711s9999||||xx |||||||||||||| ||und||
041			_aENG
082			_a532 _bBU-I
100			_aBureau of Indian Standard
245		0	_aIS : 6063 1971
250			_a1st
260			_c1971 _aNew Delhi _bBureau of Indian Standard
300			_a26
650			_aPhysics
942			_cBK
999			_c7935 _d7935