Wikilivros:Classificação Decimal de Dewey/900
- 901 Philosophy & theory
- 902 Miscellany
- 903 Dictionaries & encyclopedias
- 904 Collected accounts of events
- 905 Serial publications
- 906 Organizations & management
- 907 Education, research, related topics
- 908 With respect to kinds of persons
- 909 World history
- 911 Historical geography
- 912 Graphic representations of earth
- 913 Ancient world
- 914 Europe
- 915 Asia
- 916 Africa
- 917 North America
- 918 South America
- 919 Other areas
- 921 Not assigned or no longer used
- 922 Not assigned or no longer used
- 923 Not assigned or no longer used
- 924 Not assigned or no longer used
- 925 Not assigned or no longer used
- 926 Not assigned or no longer used
- 927 Not assigned or no longer used
- 928 Not assigned or no longer used
- 929 Genealogy, names, insignia
- 931 History of ancient world China
- 932 History of ancient world Egypt
- 933 History of ancient world Palestine
- 934 History of ancient world India
- 935 History of ancient world Mesopotamia & Iranian Plateau
- 936 History of ancient world Europe north & west of Italy
- 937 History of ancient world Italy & adjacent territories
- 938 History of ancient world Greece
- 939 History of ancient world Other parts of ancient world
- 941 General history of Europe British Isles
- 942 General history of Europe England & Wales
- 943 General history of Europe Central Europe Germany
- 944 General history of Europe France & Monaco
- 945 General history of Europe Italian Peninsula & adjacent islands
- 946 General history of Europe Iberian Peninsula & adjacent islands
- 947 General history of Europe Eastern Europe Soviet Union
- 948 General history of Europe Northern Europe Scandinavia
- 949 General history of Europe Other parts of Europe
- 951 General history of Asia China & adjacent areas
- 952 General history of Asia Japan
- 953 General history of Asia Arabian Peninsula & adjacent areas
- 955 General history of Asia Iran
- 956 General history of Asia Middle East (Near East)
- 957 General history of Asia Siberia (Asiatic Russia)
- 958 General history of Asia Central Asia
- 959 General history of Asia Southeast Asia
- 961 General history of Africa Tunisia & Libya
- 962 General history of Africa Egypt & Sudan
- 963 General history of Africa Ethiopia
- 964 General history of Africa Morocco & Canary Islands
- 965 General history of Africa Algeria
- 966 General history of Africa West Africa & offshore islands
- 967 General history of Africa Central Africa & offshore islands
- 968 General history of Africa Southern Africa
- 969 General history of Africa South Indian Ocean islands
- 971 General history of North America Canada
- 972 General history of North America Middle America Mexico
- 973 General history of North America United States
- 974 General history of North America Northeastern United States
- 975 General history of North America Southeastern United States
- 976 General history of North America South central United States
- 977 General history of North America North central United States
- 978 General history of North America Western United States
- 979 General history of North America Great Basin & Pacific Slope
- 981 General history of South America Brazil
- 982 General history of South America Argentina
- 983 General history of South America Chile
- 984 General history of South America Bolivia
- 985 General history of South America Peru
- 986 General history of South America Colombia & Ecuador
- 987 General history of South America Venezuela
- 988 General history of South America Guiana
- 989 General history of South America Paraguay & Uruguay
- 991 Not assigned or no longer used
- 992 Not assigned or no longer used
- 993 General history of other areas New Zealand
- 994 General history of other areas Australia
- 995 General history of other areas Melanesia New Guinea
- 996 General history of other areas Other parts of Pacific Polynesia
- 997 General history of other areas Atlantic Ocean islands
- 998 General history of other areas Arctic islands & Antarctica
- 999 Extraterrestrial worlds
