Back to the earth
Published in: | Leadership SA. - Johannesburg : Murray, 1982. - 7(1988), 1, Seite 84-99 |
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Main Author: | |
Other Authors: | |
Format: | Article |
Language: | English |
Published: |
1988
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Physical Description: | 1 Ill., 6 graph. Darst., 2 Kt., 7 Tab. |
ISSN: | 0257-1986 |
FIV classifikation: | |
FIV-Subjects: |
Bergbau ;
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