000 00324nam a2200145Ia 4500
008 190201s9999 xx 000 0 und d
082 _a627
082 _bG959W
100 _aGupta Bhagirath Lal
245 0 _aWater Resources Engineer
260 _aNew Delhi
260 _bStandard Pub.
260 _c1979
300 _a639
999 _c26315
_d26315