Doby, John T, et al., Ed. <br/><br/>
Introduction to social research 

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 - Stackpole Sons, Pennsylvania  1954 
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<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research methodology
<br/><br/><label>Dewey Class. No.: </label>001.42  DOB-I