Hixon, T. J. (2006). Respiratory function in singing: A primer for singers and singing teachers. Redington Brown.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHixon, Thomas J. Respiratory Function in Singing: A Primer for Singers and Singing Teachers. Tucson, Ariz.: Redington Brown, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHixon, Thomas J. Respiratory Function in Singing: A Primer for Singers and Singing Teachers. Redington Brown, 2006.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.