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| LEADER |
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| 100 |
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|a Wagner, Trevis
|
| 245 |
0 |
0 |
|a Contaminación, causas y efectos /
|c Trad. Ana Isabel Stellino.
|
| 260 |
|
|
|a México :
|b CERNIKA,
|c 1996
|
| 300 |
|
|
|a 423 p.
|
| 650 |
|
|
|a PROTECCION AMBIENTAL
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| 650 |
|
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|a MEDIO AMBIENTE
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| 650 |
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|a RECURSOS NATURALES
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| 650 |
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| 999 |
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|e | Prog. USIS
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|p 30003400
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