Four Concurrent Sessions :   Session A: Problems in the design of farming systems for group farming and large-scale development projects. 

 - Madison-U S :   University of Wisconsin-Madison,   1977. 
 - p. 35-37 
 - Irregular 
 - No. 57 (Apr. / Jun. 1977) 
 - Land Tenure Center Newletter ;   no. 57  0084-0785 .
 - Estados Unidos.   Univesity of Wisconsin - Madison. .
<br/><br/><br/>Inglés.