World copyright:   An encyclopedia 

 - Leyden:   A W Sijthoff,   1960 
 - xii, 241p. 
<br/><br/> Vol. V Index (with legislative amendments up to 31 December 1959) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedia
<br/><br/><label>Subjects--Index Terms: </label>Copyright 
<br/><br/><label>Universal Decimal Class. No.: </label>347.78  / J3.5