Classification
prev ...
351 - Public administration
2
362 - Social welfare problems & services
1
363 - Other social problems & services
7
364 - Criminology
1
368 - Insurance
1
370 - Education
4
374 - Adult education
2
380 - Commerce, communications & transportation
2
381 - Commerce
1
394 - General customs
1
400 - Language
1
401 - Philosophy & theory
1
407 - Education, research & related topics
1
410 - Linguistics
2
417 - Dialectology & historical linguistics
1
500 - Natural sciences & mathematics
2
501 - Philosophy & theory
2
510 - Mathematics
2
519 - Probabilities & applied mathematics
1
520 - Astronomy & allied sciences
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
2
577 - Ecology
1
591 - Specific topics in natural history
1
600 - Technology
3
610 - Medicine & health
3
620 - Engineering & allied operations
3
629 - Other branches of engineering
1
630 - Agriculture & related technologies
1
634 - Orchards, fruits & forestry
1
658 - General management
5
700 - The arts; fine & decorative arts
9
709 - Historical, geographic & persons treatment
1
720 - Architecture
6
780 - Music
1
800 - Literature & rhetoric
3
808 - Rhetoric & collections of literature
1
809 - History, description & criticism
4
820 - English & Old English literatures
1
900 - History & geography
24
930 - History of ancient world to ca. 499
4
939 - Other parts of ancient world to ca. 640
1
940 - History of Europe
2
941 - British Isles
1
942 - England & Wales
1
947 - Eastern Europe; Russia
1
951 - China & adjacent areas
2
954 - South Asia; India
1
956 - Middle East (Near East)
1
959 - Southeast Asia
1
more ...