Powell, Ronald R. <br/><br/>
Basic research methods for librarians / 
Powell, Ronald R. 
 - 4th ed. 
 - Westport, Conn. :  Libraries Unlimited,  2004 
 - x, 347 p. :  ill. ;  24 cm. 
 - Library and information science text series .
<br/><br/><label>ISBN: </label>1591581036 (alk. paper) | 1591581125 (pbk. : alk. paper)