000 00365nam a2200157Ia 4500
008 240220s9999 xx 000 0 und d
041 _aENG
245 0 _aIs 2430 - 1969 meth. f. sampl. of aggre. for concr
260 _aNULL
260 _bIndian Standard Institution.
260 _c1970
300 _a12p.
365 _b0
650 _aGENERAL
942 _cDBK
999 _c18227
_d18227