| 000 | 005460000a22001810004500 | ||
|---|---|---|---|
| 090 |
_aAR _b02796 |
||
| 245 | 1 | 0 | _aLand degradation problems in el Salvador |
| 650 | 1 | 4 |
_aEcología del paisaje _992227 |
| 650 | 1 | 4 |
_aProblemas ambientales _914279 |
| 650 | 1 | 4 |
_aSistemas de producción _992252 |
| 650 | 1 | 4 |
_aConservación _992401 |
| 651 | 4 |
_pEl Salvador _992749 |
|
| 041 | 0 | _aInglés | |
| 700 | 1 |
_aDixon, John A. _911514 |
|
| 100 | 1 |
_aPagiola, Stefano _98353 |
|
| 942 | _cARTICULO | ||
| 773 | 1 |
_tEl Salvador Rural Development Study _31327 _q200-221 _d1998 |
|
| 999 |
_c11857 _d11857 |
||