CCITT <br/><br/>
BLUE BOOK,VOLUME X,FASCICLE X.2: ANNEX D TO RECOMMENDATION Z.100:SDL USER GUIDELINES, IXTH PLENARY AS 

 - GENEVA  ITU  1989 
 -  180 
<br/><br/> SC-021 
<br/><br/><label>ISBN: </label>ERNET 
<br/><br/><label>Dewey Class. No.: </label>335