000 00401nam a2200169Ia 4500
008 170101s1970 xx 000 0 und d
082 _aPR 631.62 D17D
100 _aDarshan Singh
245 0 _aDrainage by pumping
250 _aCOAE
260 _aLudhiana
_bPAU
_c1970
300 _a29cm. 59
650 _aDRAINAGE
653 _aAGRICULTURAL ENGINEERING
653 _aDRAINAGE
942 _2ddc
_cT
999 _c18853
_d18853