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|a en
|2 ISO 639-1
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| 091 |
|
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|a 290
|
| 100 |
1 |
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|a Keeson, Willen Hendrick
|d 1876-
|
| 245 |
1 |
0 |
|a Helium.
|
| 260 |
|
|
|a Amsterdam :
|b Elsevier,
|c 1942.
|
| 300 |
|
|
|a xx, 494 p. :
|b il., tabla, diagr.
|
| 500 |
|
|
|a Bibliografía al final de cada capítulo
|
| 591 |
|
|
|a En ficha inventario figura: R.C. diciembre 1950
|
| 650 |
|
4 |
|a HELIO
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| 999 |
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|d 2018-02-20
|i 290
|o 546.291 K258
|p 290
|r 2018-02-20 00:00:00
|w 2018-02-20
|y BK
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