Proceedings of the expert working group 

 - New  York United Nations U S A    1980 
 - 149p.  cm. 
 - "Its, Water Resorces Series. 53" .
<br/><br/><label>Standard No.: </label>84250 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Dewey Class. No.: </label>"X9(D2):27p1.N78, M0/UN"