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Technical summary of ATIP's activities, 1982-90 : research results / G. Heinrich...[et al.].
- Botswana. Ministry of agriculture. Department of agricultural research. Agricultural technology improvement project,
- 1990.
- Gaborone :
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Technical summary of ATIP's activities, 1982-90 : promising guidelines / ed. by G. Heinrich...[et al.].
- Botswana. Ministry of agriculture. Department of agricultural research. Agricultural technology improvement project (ATIP),
- 1990.
- Gaborone :