Não informado. (2007). Annual report of the Director to the Board of Trustees. Chicago Natural History Museum.
Cita Chicago Style (17a ed.)Não informado. Annual Report of the Director to the Board of Trustees. Chicago, Ill: Chicago Natural History Museum, 2007.
Cita MLA (8a ed.)Não informado. Annual Report of the Director to the Board of Trustees. Chicago Natural History Museum, 2007.
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