Designing seed systems with small farmers : principles derived from bean research in the Great Lakes region of Africa /
Sperling, Louise.
Scheidegger, Urs.
Buruchara, Robin.
Agricultural Research and Extension Network.
London, U.K. : ODI, Agricultural Research & Extension Network,
[1996]
Caption title.
"January 1996."
Includes bibliographical references (p. 14-15).
Beans
Beans
Beans