Drew, C. H., Duivenboden, J. v., & Bonnefoy, X. (2000). Environmental health services in Europe 5: Guidelines for evaluation of environmental health services. World Health Organization, Regional Office for Europe.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDrew, Christina H., Jaco van Duivenboden, और Xavier Bonnefoy. Environmental Health Services in Europe 5: Guidelines for Evaluation of Environmental Health Services. Copenhagen, [Denmark]: World Health Organization, Regional Office for Europe, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDrew, Christina H., et al. Environmental Health Services in Europe 5: Guidelines for Evaluation of Environmental Health Services. World Health Organization, Regional Office for Europe, 2000.
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