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Ram Rahul, Central Asia: an outline historyArxivat 13 October 2017[Date mismatch] a Wayback Machine., New Delhi, Concept Publishing Company, 1997, p. 42 : "From then [1720] until the fall of the Manchu dynasty in 1912, the Manchu Ch'ing government stationed an Amban, a Manchu mandarin, and a military escort in Tibet."
Testimoni de Kent M. Wiedemann, Deputy Assistant Secretary of State for East Asian and Pacific Affairs before Subcommittee on East Asian and Pacific Affairs, Senate Foreign Relations Committee (online versionArxivat 13 January 2012[Date mismatch] a Wayback Machine.), 1995
web.archive.org
Ram Rahul, Central Asia: an outline historyArxivat 13 October 2017[Date mismatch] a Wayback Machine., New Delhi, Concept Publishing Company, 1997, p. 42 : "From then [1720] until the fall of the Manchu dynasty in 1912, the Manchu Ch'ing government stationed an Amban, a Manchu mandarin, and a military escort in Tibet."
Testimoni de Kent M. Wiedemann, Deputy Assistant Secretary of State for East Asian and Pacific Affairs before Subcommittee on East Asian and Pacific Affairs, Senate Foreign Relations Committee (online versionArxivat 13 January 2012[Date mismatch] a Wayback Machine.), 1995