Langer, R. H. M <br/><br/>
Agricultural plants 
R.H.M. Langer & G.D. Hill ; illustrations by Karen Mason 
 - 2nd ed 
 - Cambridge  Cambridge University Press  1991 
 - xiii, 387 p. : ill. ; 24 cm 
<br/><br/> Includes bibliographical references and indexes 
<br/><br/><label>ISBN: </label>9780521405638 
<br/><br/><label>ISSN: </label>91002246 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crops
<br/><br/><label>Dewey Class. No.: </label>631 LAN