↑Hirsch, Donald; Kett, Joseph F.; Trefil, James S. (2002), The New Dictionary of Cultural Literacy, Houghton Mifflin Harcourt, p. 316, ISBN0-618-22647-8, Eastern Bloc. The name applied to the former communist states of eastern Europe, including Yugoslavia and Albania, as well as the countries of the Warsaw Pact
↑Satyendra, Kush (2003), Encyclopaedic dictionary of political science, Sarup & Sons, p. 65, ISBN81-7890-071-8, the countries of Eastern Europe under communism
↑Compare: Janzen, Jörg; Taraschewski, Thomas (2009). Shahshahānī, Suhaylā, ed. Cities of Pilgrimage. Iuaes-series. 4. Münster: LIT Verlag. p. 190. ISBN9783825816186. Retrieved 2012-12-21. Until 1990, despite being a formally independent state, Mongolia had de facto been an integral part of the Soviet dominated Eastern Bloc.