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020 _a9788122423921
040 _aUPES LIBRARY
_bEnglish
082 _a691
_bDUG
100 _aDuggal, S. K
_92225
245 _aBuilding material
250 _a3rd
260 _aNew Delhi:
_bNew Age International,
_c2010
300 _a525p.
650 _aCivil engineering
942 _cBK
999 _c13082
_d13082