Não informado. (2021). Journal of the American Welding Society. American Welding Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the American Welding Society. Miami, Fla: American Welding Society, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the American Welding Society. American Welding Society, 2021.
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