000 | 00408 a2200121 4500 | ||
---|---|---|---|
080 |
_a631.58:631.459:631.61(213.5) _bE 97 F |
||
245 | 1 |
_aFarming systems principles for improved food production and the control of soil degradation in the arid, semi-arid and humid tropics _bPriceedings |
|
260 |
_aPatancheru _bICRISAT _c1986 |
||
650 | _aFarming Systems | ||
100 |
_a _d |
||
300 | _a36 p. | ||
901 | _a179506 | ||
999 |
_c81766 _d81766 |