Classification
620 - Engineering & allied operations
006 - Special computer methods
77
745 - Decorative arts
69
770 - Photography, photographs & computer art
50
302 - Social interaction
47
500 - Natural sciences & mathematics
45
331 - Labor economics
33
741 - Drawing & drawings
9
000 - Computer science, information & general works
8
384 - Communications; telecommunication
7
621 - Applied physics
5
658 - General management
5
005 - Computer programming, programs & data
4
510 - Mathematics
4
004 - Data processing & computer science
3
330 - Economics
3
604 - Special topics
2
629 - Other branches of engineering
2
686 - Printing & related activities
2
740 - Drawing & decorative arts
2
001 - Knowledge
1
011 - Bibliographies
1
152 - Perception, movement, emotions & drives
1
153 - Mental processes & intelligence
1
303 - Social processes
1
381 - Commerce
1
519 - Probabilities & applied mathematics
1
526 - Mathematical geography
1
531 - Classical mechanics; solid mechanics
1
600 - Technology
1
610 - Medicine & health
1
794 - Indoor games of skill
1
900 - History & geography
1