Plant science :  an introduction to World crops / 
Jules Janick. 
 - 3rd ed. 
 - San Francisco :  W. H. Freeman,  1981. 
 - viii, 868 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>071671261X 
<br/><br/><label>LCCN: </label>814897  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture.<br/>Plants, Cultivated.