Promersberger, William J. <br/><br/>
Modern farm power / 
William J. Promersberger, Donald W. Priebe, Frank E. Bishop. 
 - 3rd edition. 
 - Reston, Va.: :  Reston Publishing,  c1979. 
 - xiii, 270 pages :  illustrations ;  24 cm. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Farm engines.<br/>Farm mechanization.<br/>Farm tractors.