World Health Organization. (1998). Monitoring ambient air quality for health impact assessment. World Health Organization.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorld Health Organization. Monitoring Ambient Air Quality for Health Impact Assessment. Copenhagen: World Health Organization, 1998.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWorld Health Organization. Monitoring Ambient Air Quality for Health Impact Assessment. World Health Organization, 1998.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.