000 00281nam a2200121Ia 4500
008 220201s1984 xx 000 0 eng d
082 _a624
_bAGO
100 _aAgor,R
245 0 _aElements of civil engineering
260 _bKhanna publisher
_c1984
300 _a260
942 _2ddc
999 _c83758
_d83758