000 00291nam a2200121Ia 4500
008 180413s9999 xx 000 0 und d
100 _aSehgal P P
245 0 _aDesign Of Irrigation Structures
260 _bNew Delhi : Vikas 1977.
300 _a242
546 _aEng
690 _aIrrigation.
999 _c18984
_d18984