A sample survey of private tubewells and farms Gujranwala area: a report by Harza Engineering Company International. 

 - Lahore :  WAPDA ,  1967 
 - various pages :   ill. ;  29 cm.  
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Irrigation<br/>Salinity<br/>Waterlogging
<br/><br/><label>Dewey Class. No.: </label>631.7  / WAPDA-2