Não informado. (2009). Proceedings of the Birmingham Natural History Society. Birmingham Natural History and Philosophical Society.
Citace podle Chicago (17th ed.)Não informado. Proceedings of the Birmingham Natural History Society. Birmingham, Inglaterra: Birmingham Natural History and Philosophical Society, 2009.
Citace podle MLA (8th ed.)Não informado. Proceedings of the Birmingham Natural History Society. Birmingham Natural History and Philosophical Society, 2009.
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