000 00371nam a2200169Ia 4500
008 240220s9999 xx 000 0 und d
041 _aENG
082 _a691
100 _aDuggal S. K.
245 0 _aBuilding materials
260 _aNew Delhi
260 _bNew Age International Publishers
260 _c2021
365 _b10222
650 _aCIVIL
942 _cEB
999 _c13082
_d13082