Canal SolSystem45 / YouTube. DCEN US/Serbia Webinar, Advanced Wastewater Treatment & River Restoration (George Hawkins).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCanal SolSystem45 / YouTube. DCEN US/Serbia Webinar, Advanced Wastewater Treatment & River Restoration (George Hawkins).
एमएलए (9वां संस्करण) प्रशस्ति पत्रCanal SolSystem45 / YouTube. DCEN US/Serbia Webinar, Advanced Wastewater Treatment & River Restoration (George Hawkins).
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.