Não informado. (2007). Annual report of the Director to the Board of Trustees. Chicago Natural History Museum.
Style de citation Chicago (17e éd.)Não informado. Annual Report of the Director to the Board of Trustees. Chicago, Ill: Chicago Natural History Museum, 2007.
Style de citation MLA (8e éd.)Não informado. Annual Report of the Director to the Board of Trustees. Chicago Natural History Museum, 2007.
Attention : ces citations peuvent ne pas être correctes à 100%.