000			00334nam a2200157Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
245		0	_aI S 2911 pt. - II
260			_aNULL
260			_bIndian Standards Institution.
260			_c1980
300			_a15p.
365			_b12
650			_aGENERAL
942			_cDBK
999			_c16431 _d16431