American Society for Testing and Materials. Standard specification for copper and copper-alloy seamless condenser tubes and ferrule stock.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAmerican Society for Testing and Materials. Standard Specification for Copper and Copper-alloy Seamless Condenser Tubes and Ferrule Stock.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAmerican Society for Testing and Materials. Standard Specification for Copper and Copper-alloy Seamless Condenser Tubes and Ferrule Stock.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.