Sommer, Robert. <br/><br/>
A Practical Guide To Behavioral Research:Tools And Techniques. 

 - New York:  Oxford University Press,  1980. 
 - viii,256p.:  iil  23cm. 
<br/><br/><label>ISBN: </label>0195026918 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychological Research.<br/>Social Science Research.
<br/><br/><label>Dewey Class. No.: </label>150.72 SOM.