Bear, Jacob. <br/><br/>
Physical principles of water percolation and seepage /    
by J. Bear , D. Zaslavsky, s. Irmay. 
 - Paris :   UNESCO ,   1968. 
 - 465p. :    ill. ;    24 cm. 
 - UNESCO. Arid zone research ;   29. .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil percolation.--------<br/>Seepage.--------