DJK1-77 History of Eastern Europe (General)
DJK26-28 Ethnography
DJK27 Slavic peoples (General)
DJK30-51 History
DJK61-77 Local history and description
DJK61-66 Black Sea region
DJK71-76 Carpathian Mountain region
DJK76.2-76.8 Danube River Valley
DJK77 Pannonia
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
DK4123-4452 History
DK4186-4348 To 1795
DK4348.5-4395 1795-1918. 19th century (General)
DK4397-4420 1918-1945
DK4429-4442 1945-1989 People’s Republic
DK4445-4452 1989
DK4600-4800 Local history and description
DK4610-4645 Warsaw (Warszawa)
DK4650-4685 Gdansk (Danzig)
DK4700-4735 Krakow (Cracow)
The following links will take you to tutorials that you may find useful.