Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Languages of the Himalayas. An Ethnolinguistic Handbook of the Greater Himalayan Region containing an Introduction to the Symbiotic Theory of Language. Vol. 1. 2.(Handbook of Oriental Studies. Abt. 2. Bd. 10)