Philippines (Republic) Budget Commission Management Service. (1959). Handbook on form letters. Bureau of Print.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines (Republic) Budget Commission Management Service. Handbook on Form Letters. [Manila: Bureau of Print, 1959.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines (Republic) Budget Commission Management Service. Handbook on Form Letters. Bureau of Print, 1959.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.