Não informado. (1962). Begg Journal of Orthodontic Theory and Treatment. Begg Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Begg Journal of Orthodontic Theory and Treatment. Michigan City, Ind: Begg Society, 1962.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Begg Journal of Orthodontic Theory and Treatment. Begg Society, 1962.
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