American Society for Testing and Materials\nASTM International. (2019). Standardization News. American Society for Testing and Materials.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAmerican Society for Testing and Materials\nASTM International. Standardization News. Philadelphia, Pa: American Society for Testing and Materials, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAmerican Society for Testing and Materials\nASTM International. Standardization News. American Society for Testing and Materials, 2019.
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