Não informado. (2017). Bulletin of the Charles H. Tweed International Foundation. Charles H. Tweed International Foundation for Orthodontic Research.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the Charles H. Tweed International Foundation. Tucson, Ariz: Charles H. Tweed International Foundation for Orthodontic Research, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the Charles H. Tweed International Foundation. Charles H. Tweed International Foundation for Orthodontic Research, 2017.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.