TY  - BOOK
AU  - Norman, D. W.
AU  - Siebert, J.D.
AU  - Modiakgotla, E.
AU  - Worman, F.D.
TI  - Farming Systems Research Approach: A Primer for Eastern and Southern Africa 
AV  - S494.5 .N67 1994
PY  - 1994///
CY  - Gaborone, Botswana.
PB  - Farming Systems Programme
KW  - Farming
KW  - Research
KW  - Systems
N1  - Includes bibliographical references and appendices
ER  -