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| 003 | DR-UNIBE | ||
| 005 | 20210224090449.0 | ||
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| 020 | _a1878071025 | ||
| 040 |
_aBIBLIOTECA UNIBE _cBIBLIOTECA UNIBE |
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| 041 | _aeng | ||
| 090 | _aF 0791 | ||
| 100 | 4 | 0 |
_aYoung, John E. _931113 _eautor |
| 100 | 4 | 0 |
_aPaper, Worldwatch _eautor _964851 |
| 245 | 0 |
_aWorldwatch paper 101 / _cJohn E. Young, Worldwatch Paper |
|
| 260 |
_aWashington : _bWorldwatch Paper, _c1991 |
||
| 300 | 4 | _a45 p | |
| 650 |
_aProtección del medio ambiente _950996 |
||
| 951 | _a20061022 10:18:00 | ||
| 942 |
_cMX _2ddc |
||