Plant agriculture / 
selected and introduced by Jules Janick ... et al. 
 - San Francisco :  W. H. Freeman,  1970. 
 - viii, 246 pages :  illustration ;  29 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0716709961 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Plant physiology