Chopra M.L. <br/><br/>
Copyright and international conventions 
Chopra M.L. 
 -  1978 
 - ii,1-37p  cm. 
<br/><br/><label>Standard No.: </label>25,680 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Z,2674, L8