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|a Sistema Bibliotecario Universidad de El Salvador
|b spa
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|a eng
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| 082 |
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|a 428
|b R514
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| 100 |
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|a Richards, Jack C.
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| 245 |
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|a Interchange :
|b English for international communication Student's Books 1 /
|c Jack C. Richards, Jonathan Hull, Susan Proctor
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| 260 |
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|a United States :
|b Cambridge University Press,
|c 1990
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| 300 |
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|a 134p. ;
|b il.
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| 650 |
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|a INGLES ENSEÑANZA
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| 700 |
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|a Hull, Jonathan
|e coautor
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| 700 |
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|a Proctor, Susan
|e coautora
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|a eco_sandra
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|a 09/09/2008
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| 942 |
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