Water and world today 

 - New  York U N       1957 
 - 40P  cm. 
<br/><br/><label>Standard No.: </label>52906 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X:2715.1.M5, J7/UN"