Laboratory evaluation of hand operated water pumps for use in developing countries 
Consumer's association testing and research laboratories 
 - Washington DC  The World Bank  1983 
 - vii,89p.  ill.  28cm. 
<br/><br/><label>ISBN: </label>0821301330 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pumping machinery<br/>Water supply, <br/>rural
<br/><br/><label>LC Class. No.: </label>IRA TJ903.C66