000			00347nam a2200157Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
245		0	_a"I S 6461 pt. V,VII 1972,1973"
260			_aNULL
260			_bIndian Standards Institution.
260			_c1972
300			_a30p.
365			_b19
650			_aGENERAL
942			_cDBK
999			_c16484 _d16484