000 00499nam a2200157Ia 4500
008 130910s9999 xx 000 0 und d
041 _aeng
082 _221st ed.
_aP 551.572
_bNAT/C
100 _a National Institute of Hydrology.
245 _aControl evaporation :
_bsave water
_c[by] National Institute of Hydrology
260 _aRoorkee :
_bNational Institute of Hydrology ,
_c[197-?]
300 _a6p.: ill ;
_c22cm
653 _aEvaporation control
653 _aWater conservation
942 _cEN
_2ddc
999 _c26415
_d26415