Watt, S. B. <br/><br/>
Hand dug wells and their construction / 
S. B. Watt, W. E. Wood. 
 - ELBS ed. 
 - London :  English Language Book Society and Intermediate Technology Publications Ltd.,  1979. 
 - 253 p. :  ill. 
<br/><br/><label>LCCN: </label>91026110     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wells--Handbooks, manuals, etc.