Teaching aids in hydrology 
[by W.L. Moore and others] 
 - Paris,  Unesco,  1972. 
 - Technical papers in hydrology ;  11 .
 - Unesco [Document]  SC.71/XXI.11/A .
 - [Document] (Unesco) ;  SC.71/XXI.11/A .
<br/><br/> A contribution to the International Hydrological Decade. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology -- Study and teaching.--Hydrology -- Study and teaching.