Philippines (Republic) Industrial Development Center. (1957). Guide for taxpayers. Bureau of Printing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines (Republic) Industrial Development Center. Guide for Taxpayers. Manila: Bureau of Printing, 1957.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines (Republic) Industrial Development Center. Guide for Taxpayers. Bureau of Printing, 1957.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.