Não informado. (2007). Annual report of the Director of the Board of Trustees. Field Museum of Natural History.
Čikaški stil citiranja (17. izdanje)Não informado. Annual Report of the Director of the Board of Trustees. Chicago, Ill: Field Museum of Natural History, 2007.
MLA način citiranja (8. izdanje)Não informado. Annual Report of the Director of the Board of Trustees. Field Museum of Natural History, 2007.
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