Culpin, Claude <br/><br/>
Profitable farm machanisation 

 - 3rd ed. 
 - London  Granada publishing limited  1975 
 - xi,307p.; 22cm. 
<br/><br/><label>ISBN: </label>246115718 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crop machanisation - United State<br/>Crop production<br/>Efficiency standard<br/>machanisation<br/>United State - crop machanisation