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Japanese potassium symposium : nine papers read at the first Japanese potassium congress, Tokyo 1957 / [contrib. by K. Kobo...et al.].
- 852
- International potash institute,
- 1958.
- Berne :
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Potassium = Potasio = Kalium Symposium 1958 : papers read at the fifth congress of the International potash institute (4 sessions), Madrid 1958 / [D.R. Cavestany...et al.].
- International potash institute,
- 1958.
- Berne :