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