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Recordar:
| 020 | $a0-631-17314-5 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 041 | $aInglés | ||||||||||
| 080 | $a504.45.06 | ||||||||||
| 090 | $aCIDIMA | ||||||||||
| 245 10 | $aGlobal freshwater quality $b: a first assessment $cedited by Michael Meybeck, Deborah V. Chapman, Richard Helmer | ||||||||||
| 260 | $aOxford $bBasil Backwell $c1989 | ||||||||||
| 300 | $a306 p. $bgráf. $c28 | ||||||||||
| 440 | $aGlobal environment monitoring system | ||||||||||
| 500 | $aEn port.: published on behalf of the World Health Organization and United Nations Enviroment Programme | ||||||||||
| 650 14 | $aCalidad del agua | ||||||||||
| 650 14 | $aAguas continentales | ||||||||||
| 700 1 | $aMeybeck, Michel $eed. | ||||||||||
| 700 1 | $aChapman, Deborah V. $eed. | ||||||||||
| 700 1 | $aHelmer, Richard $eed. | ||||||||||
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