Lewis-Beck Michael S Ed. <br/><br/>
Experimental design and methods. 

 - London  SAGE Publications        1993 
 - xii,420p  cm. 
<br/><br/><label>Standard No.: </label>33034 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Sigma:f, N3