Longman active study dictionary. 

 - New ed. 
 - Harlow :  Longman,  2004. 
 - vi, 869 p. :  col. ill. ;  20 cm. +  1 electronic optical disc (CD-ROM)(4 3/4 in.) 
<br/><br/> Previous ed.: 1998. 
<br/><br/><label>ISBN: </label>0582794544 (pbk.) 9780582794542 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Dictionaries.
<br/><br/><label>Dewey Class. No.: </label>423  / LON