Não informado. (1894). Geological literature added to the Geological Society's Library. Geological Society of London.
Chicagoスタイル(17版)引用形式Não informado. Geological Literature Added to the Geological Society's Library. London: Geological Society of London, 1894.
MLA(8版)引用形式Não informado. Geological Literature Added to the Geological Society's Library. Geological Society of London, 1894.
警告: この引用は必ずしも正確ではありません.