000 00308nam a2200133Ia 4500
008 220201s2019 xx 000 0 eng d
082 _a620.11
_bDUG
100 _aDuggal, S.K
245 0 _aBuilding Materials
250 _a5ed.
260 _aNew Delhi
_bNew Age Techno
_c2019
300 _a600
942 _2ddc
999 _c64396
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