Grafika:Ob watershed.png

This is a map of the Ob River Watershed (at the confluence with the Irtysh river). I, Karl Musser, created it based on USGS data.

I, the copyright holder of this work, hereby publish it under the following license: This file is licensed under the Creative Commons Attribution ShareAlike 2.5 License. In short: you are free to share and make derivative works of the file under the conditions that you appropriately attribute it, and that you distribute it only under a license identical to this one. Official license

Następujące strony odwołują się do tego pliku:

• Ob
• Irtysz