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00697nam a22001691a 4500 |
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UNA01000083516 |
| 005 |
20120328193051.0 |
| 008 |
080728s1991 000 0 eng d |
| 040 |
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|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
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| 082 |
0 |
4 |
|a 333.916416
|b R425r
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| 245 |
0 |
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|a Report of the twenty first session London, 18-22 february, 1991 /
|c IMO/FAO/UNESCO/WMO/WHO/IAEA/UN/UNEP joint group of experts on the scientific aspects of marine pollution (GESAMP)
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| 260 |
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|a [s.l.] :
|b World Health Organization ,
|c 1991
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| 300 |
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|a 55 p.
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| 490 |
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|a Reports and studies no. 44
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| 650 |
0 |
4 |
|a CONSERVACION DE LOS RECURSOS
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| 650 |
0 |
4 |
|a PROTECCION DE LA NATURALEZA
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| 650 |
0 |
4 |
|a CONTAMINACION MARINA
|