World Health Organization. Regional Office for Europe & ebrary, Inc. (2010). Health and the environment in Europe: Progress assesment. WHO Regional Office for Europe.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিWorld Health Organization. Regional Office for Europe এবং Inc ebrary. Health and the Environment in Europe: Progress Assesment. Copenhagen: WHO Regional Office for Europe, 2010.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিWorld Health Organization. Regional Office for Europe এবং Inc ebrary. Health and the Environment in Europe: Progress Assesment. WHO Regional Office for Europe, 2010.
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