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. .


Inglés.