Não informado. (1894). Geological literature added to the Geological Society's Library. Geological Society of London.
Citação do estilo Chicago (17ª ed.)Não informado. Geological Literature Added to the Geological Society's Library. London: Geological Society of London, 1894.
Citação MLA (8ª ed.)Não informado. Geological Literature Added to the Geological Society's Library. Geological Society of London, 1894.
警告：這些引文格式不一定是100％准確.