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West African maize research unit : review of research for the period January, 1955 to December, 1957
- 862.01
- Federal department of agricultural research,
- [ca. 1958].
- Ibadan :
-
Quarterly research bulletin : 1st July to 30th September 1967 / Federal republic of Nigeria, Federal department of agricultural research.
- 862.9
- Federal department of agricultural research,
- 1967.
- Ibadan :