Watt, S. B. (Simon B.) <br/><br/>
A manual on the hydraulic ram for pumping water / 
by S.B. Watt. 
 - Rev. and reprinted 1977. 
 - London :  Intermediate Technology Publications Ltd.,  1977. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydraulic rams -- Automatic control -- Handbooks, manuals, etc.--Hydraulic rams -- Automatic control -- Handbooks, manuals, etc.--Hydraulic rams -- Automatic control -- Handbooks, manuals, etc.