Não informado. (1894). Geological literature added to the Geological Society's Library. Geological Society of London.
Čikaški stil citiranja (17. izdanje)Não informado. Geological Literature Added to the Geological Society's Library. London: Geological Society of London, 1894.
MLA način citiranja (8. izdanje)Não informado. Geological Literature Added to the Geological Society's Library. Geological Society of London, 1894.
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