Allen Gwynnes Pumps for Land Drainage and Irrigation 

 - APE-Allen Limited  [date of publication not identified] 
 - p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>IRRIGATION.<br/>General.<br/>IRRIG.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>UNITED KINGDOM.