Map of Inner Asia, locating the extent of the area studied by the Sinor Research Institute for Inner Asian Studies, located at Indiana University in the USA.
Based on https://commons.wikimedia.org/wiki/File:Blank_Map_World_Secondary_Political_Divisions.svg and https://commons.wikimedia.org/wiki/File:BlankMap-World6.svg
http://digitalmongolia.org/item/3bfd6968-94f4-4553-bcc6-a9c84e16a71e/index-en.html
Eric Thrift