Mutual aid : a factor of evolution
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| Reference code: | MB/0378 |
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| By: | , |
| Type: | monografie |
| Language: | Engels |
| Published: |
Harmondsworth: Penguin Books
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| Date: | 1939 |
| Series: | Pelican books, A 49 |
| Subjects: | |
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| Physical description: | 278 p. |
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| Notes: | Peter Kropotkine ; introduction: H.L. Beales |