National Flag Foundation. Flag Plaza standard: A triannual publication of the National Flag Foundation. National Flag Foundation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Flag Foundation. Flag Plaza Standard: A Triannual Publication of the National Flag Foundation. Pittsburgh, Pa.: National Flag Foundation.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNational Flag Foundation. Flag Plaza Standard: A Triannual Publication of the National Flag Foundation. National Flag Foundation.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.