Barker, Randolph. <br/><br/>
Long-term consequences of technological change on food security ; the case for cereal grain 

 - Ithaca :  New York State College of Agriculture and Life Sciences,  1979 
 - 26 p.  ; gráfs. 
 - Cornell International Agriculture. Mimeograph .
 - Cornell international agriculture mimeograph .
<br/><br/><label>LCCN: </label>73157 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Innovaciones tecnológicas.<br/>Cereales--Aspectos económicos.