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|a 507.20982
|b L6651 1981
|2 20
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| 100 |
1 |
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|a Levin, Emanuel.
|9 15751
|
| 245 |
1 |
4 |
|a Los jóvenes argentinos y la investigación científico-tecnológica /
|c Emanuel Levin.
|
| 260 |
|
|
|a Buenos Aires :
|b Lihuel,
|c 1981.
|
| 300 |
|
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|a 158 p. ;
|c 20 cm.
|
| 650 |
|
7 |
|a Investigación.
|2 unesco
|9 2646
|
| 650 |
|
7 |
|a Ciencia.
|2 unesco
|9 1039
|
| 650 |
|
7 |
|a Investigación empírica.
|2 unesco
|9 2652
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| 942 |
|
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|e Donación
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|o 507.20982 L6651 1981
|p 36049
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