TY  - WP
AU  - Lolv, A.
AU  - Seubert,C.
AU  - Waterworth, J.
TI  - Extension of on-farm research findings: issues from experience in Southern Africa
T2  - CIMMYT Economics Working Paper
PY  - 1991///
CY  - Mexico
PB  - CIMMYT, 
KW  - Farming systems
N1  - Open Access; Tables, maps, appendices, references p. 29-32
UR  - http://hdl.handle.net/10883/877
ER  -