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| LEADER |
00691cam a22002532u 4500 |
| 001 |
BUGAP-001876 |
| 003 |
AR-TrUNPB |
| 007 |
ta |
| 008 |
150818s1961 r 000 0 spa d |
| 040 |
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|a AR-TrUNPB
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| 082 |
0 |
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|a 614.7
|2 20
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| 100 |
1 |
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|a Ehlers, Víctor M
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| 650 |
|
7 |
|a CONTAMINACION
|2 Unescot
|9 2254
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| 650 |
|
7 |
|a SANEAMIENTO
|2 Unescot
|9 5656
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| 700 |
1 |
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|a Steel, Ernest W
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| 700 |
1 |
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|a Bustamante, Miguel E
|e pról
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| 700 |
1 |
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|a Perez Lias, Jose Ramon
|e tr
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| 245 |
1 |
0 |
|a Saneamiento urbano y rural /
|c Víctor M Ehlers
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| 260 |
|
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|a México :
|b Interamericana,
|c 1961
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| 300 |
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|a 493 p
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| 590 |
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|a Registros migrados a formato MARC
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| 942 |
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|c BK
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| 910 |
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|a AB951103
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| 999 |
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|c 4371
|d 4371
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