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quality assessment of the former Soviet Union. Taylor & Francis. ISBN 0-419-23920-0. Wikimedia Commons has media related to Seversky Donets. Donets River...36 KB (3,355 words) - 22:19, 24 March 2024
USSR, Water Quality Assessment of the Former Soviet Union (1998). ISBN 0419239200. North America: Physical features, The New York Times Guide to Essential...43 KB (999 words) - 18:39, 28 March 2024
