Roth, Lawrence O. <br/><br/>
An introduction to agricultural engineering :  a problem-solving approach / 
Lawrence O. Roth and Harry L. Field. 
 - 2nd ed. 
 - New York :  Van Nostrand Reinhold,  c1991. 
 - v, 346 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0442006519 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural engineering.