Fitzpatrick, M., & Bonnefoy, X. (1999). Environmental health services in Europe 4: Guidance on the development of educational and training curricula. World Health Organization, Regional Office for Europe.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFitzpatrick, Martin, और Xavier Bonnefoy. Environmental Health Services in Europe 4: Guidance on the Development of Educational and Training Curricula. Copenhagen: World Health Organization, Regional Office for Europe, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFitzpatrick, Martin, और Xavier Bonnefoy. Environmental Health Services in Europe 4: Guidance on the Development of Educational and Training Curricula. World Health Organization, Regional Office for Europe, 1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.