Kropotkin, Petr Alekseevich, kni︠a︡zʹ, 1842-1921. | Mutual aid, a factor of evolution. | Spanish
VIAF ID: 182294590 ( Expression )
Permalink: http://viaf.org/viaf/182294590
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Kropotkin, Petr Alekseevich,
Title | Sources |
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Mutual aid, a factor of evolution |