Global Environment Facility. (1993). Global monitoring of greenhouse gases including ozone: Project Document.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGlobal Environment Facility. Global Monitoring of Greenhouse Gases Including Ozone: Project Document. 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGlobal Environment Facility. Global Monitoring of Greenhouse Gases Including Ozone: Project Document. 1993.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.