Longridge, T. W. <br/><br/>
Small earth dam constructionn /  
by T. W. Longridge. 
 - Lusaka :    Government Printer,    1949. 
 - 16 p. ;    ill., plates ;    22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Earth dams -- Zambia
<br/><br/><label>Gov. Doc. Class. No.: </label>G. ZAM N32 (02) 19-1