Hunter,David.,  author. <br/><br/>
Concepts and principles of international environmental law  an introduction/ 
David Hunter ; Julia Sommer & Scott Vaughan. 
 - Geneva, Switzerland :  United Nations Environment Programme,   1994. 
 - iv, 51 pages :  colour illustrations ;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental law, International.<br/>Environmental protection--International cooperation.