Proceedings of the committee on Natural Resources 

 - New  York United Nations USA     
 - "UN, Water resources series"  7th Session: 1981 .
<br/><br/><label>Standard No.: </label>83890 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engneering
<br/><br/><label>Dewey Class. No.: </label>"X9(D2):72p1.N7, GD"