| 000 | 00591 am#a2200193 #4500 | ||
|---|---|---|---|
| 008 | ####s###############f######000#0#spa#d | ||
| 091 |
_aIBC _b00000396 |
||
| 110 | 2 |
_aWorld Wildlife Fund (WWF) _93840 |
|
| 245 | 1 | 0 | _aLearning Day 1995; Perspectives on Conservation Biology; Recommended Reading |
| 260 |
_aNew York _bWWF _c1995 |
||
| 300 | _as. | ||
| 300 | _biluscuadros | ||
| 500 | _aEnsayos escogidos de diferentes publicaciones | ||
| 546 | _ainglés | ||
| 595 |
_a _b _c |
||
| 650 | 2 | 4 |
_aBiología de la conservación _94677 |
| 650 | 2 | 4 |
_aConservación de recursos naturales _994 |
| 942 | _aLIB | ||
| 999 |
_c553 _d553 |
||