Versions - Practical research

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  1. 1
    Practical research planning and design

    Practical research planning and design by Leedy, Paul D.

    Published 1974
  2. 2
    Practical research planning and design

    Practical research planning and design by Leedy, Paul D., Ormrod, Jeanne Ellis

    Published 2013
  3. 3
    Practical research planning and design

    Practical research planning and design by Leedy, Paul D., Ormrod, Jeanne Ellis

    Published 2013

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