Purdy, S. (2021). Flop musicals of the twenty first century (Second edition.). Routledge.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPurdy, Stephen. Flop Musicals of the Twenty First Century. Second edition. Abingdon, Oxon ; New York, NY: Routledge, 2021.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPurdy, Stephen. Flop Musicals of the Twenty First Century. Second edition. Routledge, 2021.
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