Cornish, William & Llewelyn, David <br/><br/>
Intellectual Property  Patents,copyright,trade marks and allied rights 

 - 6th ed 
 - Sweet & Maxwell  London  2008 
 - cxxiv,940 
<br/><br/>
<br/><br/><br/>E 
<br/><br/><label>Universal Decimal Class. No.: </label>346.048(42)