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Thionic fluvisols (including acid sulphate soils, cat clays, mangrove soils, etc.) : [covering the published literature for 1957-1974] / comp. by Commonwealth bureau of soils.
- Commonwealth Agricultural Bureaux,
- 1976.
- Slough :
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Composition and quality of crops as affected by soil factors : maize, sorghum and millets : [covering the published literature for 1966-1975] / comp. by Commonwealth bureau of soils.
- Commonwealth Agricultural Bureaux,
- 1976.
- Slough :