Não informado. (2007). Annual report of the Director to the Board of Trustees. Chicago Natural History Museum.
Chicagoスタイル(17版)引用形式Não informado. Annual Report of the Director to the Board of Trustees. Chicago, Ill: Chicago Natural History Museum, 2007.
MLA(8版)引用形式Não informado. Annual Report of the Director to the Board of Trustees. Chicago Natural History Museum, 2007.
警告: この引用は必ずしも正確ではありません.