Sansom, R. (2023). Vocal traditions: Training in the performing arts. Routledge.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSansom, Rockford. Vocal Traditions: Training in the Performing Arts. New York: Routledge, 2023.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSansom, Rockford. Vocal Traditions: Training in the Performing Arts. Routledge, 2023.
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