000 00302nam a2200121Ia 4500
008 220201s1984 xx 000 0 eng d
082 _a624.18
_bAGG
100 _aAggarwal etc.
245 0 _aT.B of civil engineering materials
260 _bIndia publishing House
_c1984
300 _a329
942 _2ddc
999 _c83487
_d83487