Philippines. Republic. Department of Trade and Industry. Directory of large establishments: 1967 economic census. Bureau of the Census and Statistics.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines. Republic. Department of Trade and Industry. Directory of Large Establishments: 1967 Economic Census. Manila: Bureau of the Census and Statistics.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPhilippines. Republic. Department of Trade and Industry. Directory of Large Establishments: 1967 Economic Census. Bureau of the Census and Statistics.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.