Merriam-webster <br/><br/>
Webster's home &  office desk reference 

 - New York :  Merriam-Webster Inc.,  1997. 
 - ix,710p. :  ill. ; 
<br/><br/><label>ISBN: </label> 0765197189 
<br/><br/><label>LC Class. No.: </label>AG106  / .W33  1997