Classification
790 - Recreational & performing arts
21
006 - Special computer methods
19
004 - Data processing & computer science
11
000 - Computer science, information & general works
10
330 - Economics
10
820 - English & Old English literatures
8
005 - Computer programming, programs & data
7
500 - Natural sciences & mathematics
7
658 - General management
7
306 - Culture & institutions
6
331 - Labor economics
6
576 - Genetics & evolution
6
700 - The arts; fine & decorative arts
6
333 - Economics of land & energy
5
570 - Life sciences; biology
5
590 - Animals (Zoology)
5
300 - Social sciences
4
363 - Other social problems & services
4
610 - Medicine & health
4
620 - Engineering & allied operations
4
100 - Philosophy & psychology
3
571 - Physiology & related subjects
3
572 - Biochemistry
3
577 - Ecology
3
592 - Invertebrates
3
600 - Technology
3
796 - Athletic & outdoor sports & games
3
140 - Specific philosophical schools
2
303 - Social processes
2
338 - Production
2
384 - Communications; telecommunication
2
519 - Probabilities & applied mathematics
2
530 - Physics
2
573 - Specific physiological systems in animals
2
580 - Plants (Botany)
2
581 - Specific topics in natural history
2
595 - Arthropods
2
599 - Mammals
2
611 - Human anatomy, cytology & histology
2
616 - Diseases
2
621 - Applied physics
2
624 - Civil engineering
2
641 - Food & drink
2
664 - Food technology
2
780 - Music
2
808 - Rhetoric & collections of literature
2
900 - History & geography
2
910 - Geography & travel
2
003 - Systems
1
050 - General serial publications
1
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