Textbooks in hydrology :  Technical papers in hydrology. 

 - France :  Unesco ,  1974. 
 - 223 P. :   ill. ;  27 cm 
<br/><br/> Inventory Control Project record. 
<br/><br/><label>ISBN: </label>9231011480 
<br/><br/><label>Dewey Class. No.: </label>551.48  / UNI 1974