International Association of Scientific Hydrology. <br/><br/>
The use of analog and digital computers in hydrology=L'utilisation des calculatrices analogiques et des ordinateurs en hydrologie. 

 - Paris :  Unesco,  1968. 
 - 2 v. :  ill., maps. 
 - International Association of Hydrological Sciences. Publication ;  no. 80 & 81 .
<br/><br/> Text both in English and French. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology--Data processing.<br/>Electronic digital computers.<br/>Analog computers.