Hessler Richard M <br/><br/>
Social research methods. 

 - New York     West Publishing       1982 
 - xxiii,379p  cm. 
<br/><br/><label>Standard No.: </label>33031 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Sigma:f, M2