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Subclass DK
| DK1-949.5 | History of Russia. Soviet Union. Former Soviet Republics | |||
| DK33-35.5 | Ethnography | |||
| DK36-293 | History | |||
| DK70-112.42 | Early to 1613 | |||
| DK70-99.7 | Rus’ | |||
| DK99.8-112.42 | Muscovy | |||
| DK112.8-264.8 | House of Romanov, 1613-1917 | |||
| DK265-265.95 | Revolution, 1917-1921 | |||
| DK266-292 | Soviet regime, 1918-1991 | |||
| DK293 | 1991- | |||
| DK500 | Regions not limited to one Republic, A-Z | |||
| DK501-949.5 | Local history and description | |||
| DK502.3-502.75 | Baltic States | |||
| DK503-503.95 | Estonia | |||
| DK503.92-503.939 | Tallinn | |||
| DK504-504.95 | Latvia | |||
| DK504.92-504.939 | Riga | |||
| DK505-505.95 | Lithuania | |||
| DK505.92-505.939 | Vilnius | |||
| DK507-507.95 | Belarus. Byelorussian S.S.R. White Russia | |||
| DK507.92-507.939 | Minsk | |||
| DK508-508.95 | Ukraine | |||
| DK508.92-508.939 | Kiev | |||
| DK509 | Southern Soviet Union | |||
| DK509.1-509.95 | Moldova. Moldovian S.S.R. Bessarabia | |||
| DK509.92-509.939 | Chisinau. Kishinev | |||
| DK510-651 | Russia (Federation). Russian S.F.S.R. | |||
| DK541-579 | Saint Petersburg. Leningrad. Petrograd | |||
| DK588-609 | Moscow | |||
| DK670-679.5 | Georgia (Republic). Georgian S.S.R. Georgian Sakartvelo | |||
| DK679.2-679.39 | Tbilisi. Tiflis | |||
| DK680-689.5 | Armenia (Republic). Armenian S.S.R. | |||
| DK689.2-689.39 | Yerevan. Erevan | |||
| DK690-699.5 | Azerbaijan. Azerbaijan S.S.R. | |||
| DK699.2-699.39 | Baku | |||
| DK751-781 | Siberia | |||
| DK845-860 | Soviet Central Asia. West Turkestan | |||
| DK901-909.5 | Kazakhstan. Kazakh S.S.R. | |||
| DK909.2-909.39 | Alma Ata | |||
| DK911-919.5 | Kyrgyzstan. Kirghiz S.S.R. Kirghizia | |||
| DK919.2-919.39 | Frunze | |||
| DK921-929.5 | Tajikistan. Tajik S.S.R. Tadzhikistan | |||
| DK929.2-929.39 | Dushanbe | |||
| DK931-939.5 | Turkmenistan. Turkmen S.S.R. Turkmenia | |||
| DK939.2-939.39 | Ashkhabad | |||
| DK941-949.5 | Uzbekistan. Uzbek S.S.R. | |||
| DK949.2-949.39 | Tashkent | |||
| DK4010-4800 | History of Poland | |||
| DK4120-4122 | Ethnography | |||
