National Drinking Water Clearinghouse. Ion exchange and demineralization.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Drinking Water Clearinghouse. Ion Exchange and Demineralization.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNational Drinking Water Clearinghouse. Ion Exchange and Demineralization.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.