000 00412nam a2200181 4500
020 _a
_c
082 _a338.6 DHA-E
100 _aDhawan, B D
245 _aEconomics of groundwater irrigation in hard rock regions
250 _a
260 _aAgricole Publishing Academy, New Delhi
_c1986
300 _a
490 _a
500 _a
590 _a
_b
_c
650 _aIndustrial economics
942 _cBK
999 _c315911
_d315911