National Tobacco Corporation. (1949). Annual report of the National Tobacco Corporation for the fiscal year ended June 30, 1949-. [s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Tobacco Corporation. Annual Report of the National Tobacco Corporation for the Fiscal Year Ended June 30, 1949-. Manila: [s.n.], 1949.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNational Tobacco Corporation. Annual Report of the National Tobacco Corporation for the Fiscal Year Ended June 30, 1949-. [s.n.], 1949.
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