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|9 236742
|a Prensky, Paul
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| 245 |
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|a Ecología: fin o comienzo del mundo [Parte 2] /
|c Paul Prensky.
|
| 260 |
|
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|a Buenos Aires :
|b Contracultura ,
|c 1970
|
| 300 |
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|a pp. 21-23
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| 500 |
|
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|a En Contracultura n° 2 (septiembre 1970)
|
| 650 |
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0 |
|9 33738
|a Ecología
|
| 650 |
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0 |
|9 2402
|a Biología
|
| 773 |
0 |
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|0 25085
|9 23708
|a Grinberg, Miguel
|d Buenos Aires : Contracultura, 1970.
|o 10337
|t CONTRACULTURA. Foro de alternativas /
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| 942 |
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|2 z
|c ANA
|