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|a eng
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| 082 |
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|a 333.72
|b W675
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|a World Congress on National Parks and Protected Areas, IV th.
|
| 245 |
0 |
0 |
|a World Heritage Twenty Years Later /
|c compiled by Jim Thorsell.
|
| 260 |
|
|
|a Caracas :
|b IUCN,
|c 1992
|
| 300 |
|
|
|a 191 p. ;
|b il
|
| 650 |
|
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|a CONSERVACION DE LOS RECURSOS NATURALES
|
| 650 |
|
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|a PROTECCION DEL MEDIO AMBIENTE
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| 999 |
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|w 2012-08-15
|y BK
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