1 - 1 toradh á dtaispeáint as 1 toradh san iomlán ar an gcuardach 'Moses, Lincoln E. 1921- .', am iarratais: 0.01s Beachtaigh na torthaí
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    Planning and analysis of observational studies de réir Cochran, William Gemmel 1909-1980

    Foilsithe / Cruthaithe 1983
    LEABHAR

    Planning and analysis of observational studies

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