Armstrong, William. <br/><br/>
Better tools for the job :  specifications for hand tools and equipment / 
William Armstrong. 
 - London :  Intermediate Technology Publications,  c1980. 
<br/><br/><label>ISBN: </label>090303171X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tools -- Specifications.--Tools -- Specifications.<br/>Agricultural implements -- Specifications.--Agricultural implements -- Specifications.
<br/><br/><label>National Agricultural Library Call No.: </label>TJ1195.A6