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| LEADER |
01298nam a2200241 a 4500 |
| 008 |
050201s1973||||es |||||||||||||||||spa|| |
| 041 |
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|a spa
|
| 094 |
|
|
|a 614.772
|b V651c
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| 100 |
|
|
|a Vidaurre Gutiérrez, René Mauricio
|
| 245 |
|
|
|a Comportamiento de los detergentes sintéticos en la contaminación de aguas superficiales y negras
|
| 260 |
|
|
|a San Salvador :
|b Universidad de El Salvador,
|c 1973
|
| 300 |
|
|
|a 57 h
|
| 502 |
|
|
|a Tesis (Química Industrial) -- Universidad de El Salvador
|
| 650 |
|
|
|a AGUA-CONTAMINACION-EL SALVADOR
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| 650 |
|
|
|a ETERGENTES-CONTAMINACION
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| 991 |
|
|
|a bc_noemi
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| 992 |
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|
|a 25/07/2006
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| 942 |
|
|
|c BK
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| 999 |
|
|
|c 66709
|d 66709
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| 952 |
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|
|0 0
|1 0
|4 0
|6 614_772000000000000_V651C
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|8 T
|9 119572
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|b 10
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|i 10104977
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| 952 |
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| 952 |
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|
|0 0
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|9 119574
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|p 15105336
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|t 1
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|y TS
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| 952 |
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|0 0
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