Classification
prev ...
350 - Public administration & military science
34
351 - Public administration
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
25
362 - Social welfare problems & services
1
363 - Other social problems & services
103
364 - Criminology
33
365 - Penal & related institutions
1
370 - Education
186
380 - Commerce, communications & transportation
21
382 - International commerce
1
394 - General customs
1
398 - Folklore
1
400 - Language
96
401 - Philosophy & theory
1
407 - Education, research & related topics
1
410 - Linguistics
46
414 - Phonology & phonetics
7
431 - German writing systems & phonology
1
432 - German etymology
1
450 - Italian, Romanian & related languages
1
481 - Classical Greek writing & phonology
1
490 - Other languages
1
491 - East Indo-European & Celtic languages
29
500 - Natural sciences & mathematics
21
530 - Physics
3
540 - Chemistry & allied sciences
2
551 - Geology, hydrology & meteorology
2
574 - [Unassigned]
1
576 - Genetics & evolution
187
577 - Ecology
1
580 - Plants (Botany)
7
581 - Specific topics in natural history
2
590 - Animals (Zoology)
1
600 - Technology
41
610 - Medicine & health
237
615 - Pharmacology & therapeutics
1
616 - Diseases
1
618 - Gynecology, obstetrics, pediatrics & geriatrics
1
620 - Engineering & allied operations
13
621 - Applied physics
1
630 - Agriculture & related technologies
128
650 - Management & auxiliary services
8
657 - Accounting
11
658 - General management
9
700 - The arts; fine & decorative arts
524
720 - Architecture
2
770 - Photography, photographs & computer art
2
780 - Music
7
791 - Public performances
3
more ...