National Tobacco Corporation. (1949). Annual report of the National Tobacco Corporation for the fiscal year ended June 30, 1949-. [s.n.].
芝加哥风格引文National Tobacco Corporation. Annual Report of the National Tobacco Corporation for the Fiscal Year Ended June 30, 1949-. Manila: [s.n.], 1949.
MLA引文National Tobacco Corporation. Annual Report of the National Tobacco Corporation for the Fiscal Year Ended June 30, 1949-. [s.n.], 1949.
警告：这些引文格式不一定是100％准确.