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01244nam a2200277 a 4500 |
| 008 |
050201s1991||||xxua |||||||||||||spa|| |
| 040 |
|
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|a Sistema Bibliotecario Universidad de El Salvador
|b spa
|
| 041 |
|
|
|a spa
|
| 082 |
|
|
|a 628.168
|b R427c 1991
|
| 100 |
|
|
|a Requena, L. Fernando
|
| 245 |
0 |
0 |
|a Contaminación de las aguas superficiales y subterráneas en determinadas cuencas de la región sudoccidental de El Salvador
|
| 260 |
|
|
|a Washington :
|b Agency for international development,
|c 1991
|
| 300 |
|
|
|a 155 p. ;
|b il
|
| 336 |
|
|
|2 rdacontent
|a texto
|b txt
|
| 337 |
|
|
|2 rdamedia
|a no mediado
|b n
|
| 338 |
|
|
|2 rdacarrier
|a volumen
|b nc
|
| 440 |
|
|
|a Informe de campo WASH No. 354
|
| 650 |
|
|
|a RECURSOS HIDRICOS
|
| 650 |
|
|
|a AGUAS SUBTERRANEAS
|
| 650 |
|
|
|a CONTAMINACION DE AGUAS SUBTERRANEAS
|
| 650 |
|
|
|a CUENCAS HIDROGRAFICAS-EL SALVADOR
|
| 700 |
|
|
|a Myton, Decky A.
|e coautor
|
| 942 |
|
|
|c BK
|2 ddc
|
| 999 |
|
|
|c 90895
|d 90895
|
| 952 |
|
|
|0 0
|1 0
|4 0
|6 628_168000000000000_R427C
|7 0
|8 CG
|9 164686
|a 13
|b 13
|c CG
|d 2012-08-15
|i 13001538
|o 628.168 R427c
|p 13001538
|r 2018-09-17
|t 1
|w 2012-08-15
|y BK
|
| 952 |
|
|
|0 0
|1 0
|4 0
|6 628_168000000000000_R427C
|7 0
|8 CG
|9 164687
|a 13
|b 13
|c CG
|d 2012-08-15
|i 13001539
|l 1
|o 628.168 R427c
|p 13001539
|r 2016-08-10
|s 2016-06-20
|t 2
|w 2012-08-15
|y BK
|