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Rural planning in a savanna region
Raay, Hans G. van, (1975)
Land tenure and agricultural development in Nigeria
Famoriyo, Segun, (1979)
Trends and prospects of Nigeria's agricultural exports
Olayide, Samson Olajuwon, (1972)
L' adaptation de structures coopératives modernes au développement de l'agriculture nigérienne
Oluwasanmi, H. A., (1966)
Nigeria
Oluwasanmi, H. A., (1963)
Oluwasanmi, H. A., (1965)