Fact, fiction and forecast
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | German |
| Cyhoeddwyd: |
Cambridge, Mass. [u.a.] :
Harvard Univ. Press,
1983
|
| Rhifyn: | 4. ed. |
| Pynciau: | |
| Mynediad Ar-lein: | Inhaltsverzeichnis |
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