000			00338nam a2200157Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
245		0	_aI S 6461 pt. I - 1972
260			_aNULL
260			_bIndian Standards Institution.
260			_c1972
300			_a12p.
365			_b10
650			_aGENERAL
942			_cDBK
999			_c16420 _d16420