000			00335nam a22001457a 4500
003			OSt
008			250506b |||||||| |||| 00| 0 eng d
020			_a8171640494
082			_a631.6
100			_aKumar, Ranvir
245			_aTextbook of Drainage Engineering
260			_aNew Delhi _bICAR _c2017
300			_a343P
942			_2ddc _cBK
999			_c50494 _d50494