Wolfke, Karol <br/><br/>
Custom in present international law 
Karol Wolfke 
 - 2nd rev. ed. 
 - Dordrecht  Martinus Nijhoff  1993 
 - 192 p. ; 25 cm. 
 - Developments in international law  vol. 14 .
<br/><br/><label>ISBN: </label>0792320093 
<br/><br/><label>LCCN: </label>92-32405 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International law<br/>Customary law, International