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    El Nitrogeno no proteico en la nutrición de los rumiantes / by Loosli, John K.

    Published 1969
    Book
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    Urea and other nonprotein nitrogen compounds in animal nutrition /

    Published 1976
    Book
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    Avaliaçao de cultivares de trigo e aveia sob dois sistemas de preparo do solo / by Riera, Ernesto Adrián

    Published 1996
    Thesis Book
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    Acción de la urea, Sodio dodécil sulfato y 2-Mercapto etanol sobre la albúmina sérica bovina. by Puentes, Anita

    Published 1972
    Thesis Book
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