Hagen,Frank E. <br/><br/>
Research methods in criminal justice and criminology 

 - 2 ed 
 - New York  Macmillan  1989 
 - 471 p. 
<br/><br/><label>ISBN: </label>9780023488306 
<br/><br/><label>Dewey Class. No.: </label>364.072