Watt, S.B. <br/><br/>
Hand dug wells and their construction / 
S.B. Watt and W.E. Wood. 
 - London :  Intermediate Technology Publications,  1979. 
 - 253 p. :  ill. ;  21 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0903031574 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wells--Handbooks, manuals.