Classification
621 - Applied physics
84
006 - Special computer methods
69
004 - Data processing & computer science
28
620 - Engineering & allied operations
24
616 - Diseases
14
629 - Other branches of engineering
12
005 - Computer programming, programs & data
11
003 - Systems
10
571 - Physiology & related subjects
9
610 - Medicine & health
9
384 - Communications; telecommunication
7
519 - Probabilities & applied mathematics
7
510 - Mathematics
5
530 - Physics
5
590 - Animals (Zoology)
5
331 - Labor economics
4
612 - Human physiology
4
300 - Social sciences
3
570 - Life sciences; biology
3
580 - Plants (Botany)
3
617 - Surgery & related medical specialties
3
658 - General management
3
781 - General principles & musical forms
3
001 - Knowledge
2
025 - Library operations
2
330 - Economics
2
500 - Natural sciences & mathematics
2
511 - General principles of mathematics
2
572 - Biochemistry
2
576 - Genetics & evolution
2
577 - Ecology
2
630 - Agriculture & related technologies
2
000 - Computer science, information & general works
1
050 - General serial publications
1
155 - Differential & developmental psychology
1
323 - Civil & political rights
1
374 - Adult education
1
534 - Sound & related vibrations
1
536 - Heat
1
543 - Analytical chemistry
1
573 - Specific physiological systems in animals
1
579 - Microorganisms, fungi & algae
1
591 - Specific topics in natural history
1
600 - Technology
1
611 - Human anatomy, cytology & histology
1
660 - Chemical engineering
1
664 - Food technology
1
670 - Manufacturing
1
745 - Decorative arts
1