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3
-
Technology and economic change : essays and inquiries / T.R. DeGregori.
- McLoughlin,
- 1974.
- Comox :
-
Agricultural development projects in Francophonic Africa / contrib. by H.J.C. Elliott...[et al.].
- 860.12
- McLoughlin,
- 1974.
- Comox :
-
The problem of collecting data on food production and farming in African economies / by C.A. Gibbons...[et al.].
- 86
- McLoughlin,
- 1974.
- Comox :