000			00340nam a2200157Ia 4500
008			230913s9999 xx 000 0 und d
082			_a DUG
100			_aDuggal, S.K.
245		0	_aSurveying V.I
250			_aIV ed
260			_aNEW DELHI
260			_bMCGRAWHILL
260			_c2016
300			_a625
650			_aCivil Engineering
999			_c120415 _d120415