Watt, Simon <br/><br/>
21 Chain and washer pumps/ 
Simon Watt  
 - London :  Intermediate Technology  Publication,  1976 
<br/><br/><label>ISBN: </label>0903031264 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chain and Washer Pumps
<br/><br/><label>Dewey Class. No.: </label>621.60  / WAT