Sheresh, Beth and Sheresh , Doug. <br/><br/>
Understanding directory services / 

 - 2nd. 
 - USA,  Sams,  c2002. 
 - xiii, 621p. ;  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0672323052 
<br/><br/><label>Dewey Class. No.: </label>005.71376