TY - BOOK AU - Hans Ruthenberg AU - Hans E. Jahnke, TI - Innovation policy for small farmers in the tropics SN - 0-19-859487-9 U1 - 338.1 PY - 1985/// CY - Oxford PB - Clarendon Press N1 - Hans Ruthenberg & Hans E. Jahnke: Innovation policy for small farmers in the tropics. Oxford. Clarendon Press, 1985. 0-19-859487-9--(338.1RUT) ER -