000			00325nam a2200157Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
245		0	_aI S 1661
260			_aNULL
260			_bIndian Standards Institution.
260			_c1972
300			_a28p.
365			_b19
650			_aGENERAL
942			_cDBK
999			_c16476 _d16476