↑ 1.01.1Hirsch, Donald; Kett, Joseph F.; Trefil, James S. The New Dictionary of Cultural Literacy. Houghton Mifflin Harcourt: 316. 2002. ISBN 0-618-22647-8. 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缺少或|url=为空 (帮助)
↑Satyendra, Kush. Encyclopaedic dictionary of political science. Sarup & Sons: 65. 2003. ISBN 81-7890-071-8. the countries of Eastern Europe under communism缺少或|url=为空 (帮助)
↑对比:Janzen, Jörg; Taraschewski, Thomas. Shahshahānī, Suhaylā , 编. Cities of Pilgrimage. Iuaes-series 4. Münster: LIT Verlag. 2009: 190、211. ISBN 9783825816186. Until 1990, despite being a formally independent state, Mongolia had de facto been an integral part of the Soviet dominated Eastern Bloc.使用|accessdate=需要含有|url= (帮助)