Casey, Frank. <br/><br/>
A course in farming systems research  : the Cornell experience 

 - Ithaca :  Cornell University ; New York :  State College of Agriculture and Life Science,  1982 
 - 92 p. 
 - Cornell international agriculture mimeograph  ; 93 .
 - Cornell international agriculture mimeograph  ; 93 .
<br/><br/><label>LCCN: </label>12977 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sistemas de cultivo.
<br/><br/><label>Dewey Class. No.: </label>631.5  / C3