Não informado. (2020). Steels Supplement to Metals Abstracts. Metals Information.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Steels Supplement to Metals Abstracts. Metals Park, Ohio: Metals Information, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Steels Supplement to Metals Abstracts. Metals Information, 2020.
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