DescriptionObriverbasin.png Русский: Схема бассейна реки Обь Deutsch: Einzugsgebiet des Ob und seiner Nebenflüsse Date 16 February 2010 Source Own work
https://creativecommons.org/licenses/by-sa/3.0CC BY-SA 3.0 Creative Commons Attribution-Share Alike 3.0 truetrue English Hungarian Az Ob folyó medencéje.
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English: This is a map of the ObRiver Watershed (at the confluence with the Irtysh). Russia. Esperanto: La mapo de akvodislimo de rivero Obo (ĉe kunfluejo