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 |