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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSong, Yajie & Others. Urban Environmental Crisis Management. Beijing: Science press, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSong, Yajie & Others. Urban Environmental Crisis Management. Science press, 2012.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.