The reduction of sulphur needs in fertilizer manufacture
[by Christopher J. Pratt]
Bok Engelsk 1969 Christopher J Pratt
| Utgitt | New York : United Nations , 1969
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|---|---|
| Omfang | 61 s. : ill.
|
| Opplysninger | At head of title: United Nations Industrial Development Organization, Vienna.
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| Emner |
