World Health Organization. (2000). Environmental health criteria 214: Human exposure assessment. World health Organization.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorld Health Organization. Environmental Health Criteria 214: Human Exposure Assessment. Geneva: World health Organization, 2000.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWorld Health Organization. Environmental Health Criteria 214: Human Exposure Assessment. World health Organization, 2000.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.