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Project selection in a region : within the context of national development planning (as applied in the Department of La Paz, Bolivia) / Enrique Garcia-Ayaviri.
- Institute of social studies,
- 1978.
- The Hague :
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Fifth Africa symposium on horticultural crops : 27 November-2 December 1977, Khartoum / convenor Gaafar M. El Hassan ; [ed. H.H. van der Borg].
- 86
- International society for horticultural science (ISHS),
- 1978.
- The Hague :