d'Aspremont Jean <br/><br/>
Formalism and the sources of international law : a theory of the ascertainment of legal rules 

 - Oxford, UK :  Oxford University Press,  2013 
 - 322 p 
<br/><br/><label>ISBN: </label>9780199682263 
<br/><br/><label>Dewey Class. No.: </label>341.2 ASP