Não informado. (2020). Transactions of the I.R.E. Professional Group on Ultrasonics Engineering. Institute of Radio Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Transactions of the I.R.E. Professional Group on Ultrasonics Engineering. New York: Institute of Radio Engineers, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Transactions of the I.R.E. Professional Group on Ultrasonics Engineering. Institute of Radio Engineers, 2020.
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