Pierce, Roger. <br/><br/>
Research methods in politics :  a practical guide / 
Roger Pierce. 
 - London :  SAGE,  2008. 
 - xi, 339 p. :  ill. ;  24 cm. 
<br/><br/>Includes index and bibliography : p. 330-334. 
<br/><br/><label>ISBN: </label>9781412935500 (hbk) 9781412935517 (pbk)  RM124.46 1412935512 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political science--Research--Methodology.