चुकोत्को-कमचातकी भाषाएँ Comrie, Bernard. 1981, The Languages of the SovietUnion. Cambridge University Press. Fortescue, Michael. 1998. Language Relations
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से पहले) उनकी स्वतंत्रता को सहमती दे दी। सोवियत संघ A History of the SovietUnion from the Beginning to the End, Peter Kenez, pp. 273, Cambridge University