Não informado. (1894). Geological literature added to the Geological Society's Library. Geological Society of London.
Chicago-Zitierstil (17. Ausg.)Não informado. Geological Literature Added to the Geological Society's Library. London: Geological Society of London, 1894.
MLA-Zitierstil (8. Ausg.)Não informado. Geological Literature Added to the Geological Society's Library. Geological Society of London, 1894.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.