Farming Systems Programme (Botswana) & Norman, D. W. (1994). Farming systems research approach: A primer for eastern and southern Africa. Farming Systems Programme.
Citação do estilo Chicago (17ª ed.)Farming Systems Programme (Botswana) e D. W. Norman. Farming Systems Research Approach: A Primer for Eastern and Southern Africa. Gaborone, Botswana: Farming Systems Programme, 1994.
Citação MLA (8ª ed.)Farming Systems Programme (Botswana) e D. W. Norman. Farming Systems Research Approach: A Primer for Eastern and Southern Africa. Farming Systems Programme, 1994.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.