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Podřazené záznamy
Williams P.: Bombus - Bumblebees of the World, Natural History Museum, London LepIndex - The Global Lepidoptera Names Index, The Natural History Museum, London Timdal E.: Lichen Herbarium Jeffery P. (2001-2003): Gastropod Classification, The Natural History Museum, London Smith A. B. (ed.) (2005): Echinoid Directory, Natural History Museum, London