Unesco <br/><br/>
Teaching of hydrology 

 - Paris  The unesco  1974 
 - ,  ,  Book  
<br/><br/><label>Subjects--Index Terms: </label>study and teaching  study and teaching  Limnology  Teaching of hydrology  
<br/><br/><label>Dewey Class. No.: </label>551.480 7  / L4