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4
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A study of the social and economic implications of the large scale introduction of high-yielding varieties of foodgrains : a selection of readings / António Barreto.
- United Nations Research Institute For Social Development,
- 1971.
- Geneva :
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Growth poles and growth centres in the regional development of Nigeria / by Akin L. Mabogunje.
- 862.9
- United Nations Research Institute For Social Development,
- 1971.
- Geneva :
-
Growth poles and growth centres in regional policies and planning (seven case studies) / R.P. Misra...[et al.].
- United Nations Research Institute For Social Development,
- 1971.
- Geneva :
-
Cooperatives and rural development in Latin America : an analytical report / Orlando Fals Borda.
- 875
- United Nations Research Institute For Social Development,
- 1971.
- Geneva :