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020 _c350
_a9788122433791
040 _aET
082 _a624.15 DUG S
100 _aDuggal, S. K
_97529
245 0 _aBuilding materials
250 _a4th ed.
260 _bNew Age International:
_aDelhi,
_c2015.
300 _a588p.
650 _aCivil Engineering
_99968
942 _cBK
999 _c38404
_d38404