Plant science :  an introduction to world crops / 
Jules Janick ...[et al.] 
 - 3rd ed. 
 - San Francisco :  W.H. Freeman,  1981. 
 - 868 pages :  illustrations, maps, port. ;  24 cm . 
<br/><br/>Includes bibliographies and index 
<br/><br/><label>ISBN: </label>071671261X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture.<br/>Plants, Cultivated.