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00678nab a2200217uu 4500 |
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|a 9326026
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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 Some estimators in sampling with varying probabilities without replacement.
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|a 269-284.
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|a MUESTREO
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|7 nnab
|t Vol.51, no.273 - Vol.51, no.276
|g Vol.51, no.274
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|a 20-APR-2012 - VARGAS ZUÑIGA, SUSAN
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|a 19-APR-2012 - VARGAS ZUÑIGA, SUSAN
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|a -SVZ
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|a Reconversión
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