Proceedings of the expert group meeting on water p 

 - New  York United Nations U S A    1981 
 - "United Nations, Water Resources Series. 55" .
<br/><br/><label>Standard No.: </label>84269 
<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):76.1.N7, M1/UN"