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970624s1970 xxu ||||| eng |
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|a 889753
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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|a eng
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|a 628.53
|b A978A
|2 00
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|a Aylesworth, Thomas G.
|e Autor/a
|4 aut
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|a The Air we breathe, the water we drink /
|c Thomas G. Aylesworth. --
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|a [1. edition]. --
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|a New York, New York :
|b MacfaddenBartell,
|c 1970.
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|a 125 páginas ;
|c 18 cm
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650 |
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|a CONTAMINACION DEL AIRE
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650 |
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|a CONTAMINACION DEL AGUA
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916 |
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|a Reconversión
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