Classification
745 - Decorative arts
006 - Special computer methods
959
005 - Computer programming, programs & data
893
620 - Engineering & allied operations
743
331 - Labor economics
661
000 - Computer science, information & general works
631
658 - General management
622
500 - Natural sciences & mathematics
509
302 - Social interaction
375
621 - Applied physics
301
384 - Communications; telecommunication
262
004 - Data processing & computer science
243
741 - Drawing & drawings
237
794 - Indoor games of skill
209
330 - Economics
180
381 - Commerce
173
740 - Drawing & decorative arts
165
686 - Printing & related activities
108
720 - Architecture
102
629 - Other branches of engineering
91
300 - Social sciences
68
338 - Production
67
790 - Recreational & performing arts
49
670 - Manufacturing
43
770 - Photography, photographs & computer art
37
371 - Schools & their activities; special education
34
510 - Mathematics
34
001 - Knowledge
33
153 - Mental processes & intelligence
31
374 - Adult education
31
519 - Probabilities & applied mathematics
24
659 - Advertising & public relations
24
746 - Textile arts
21
650 - Management & auxiliary services
19
025 - Library operations
18
781 - General principles & musical forms
15
600 - Technology
14
681 - Precision instruments & other devices
14
792 - Stage presentations
12
011 - Bibliographies
11
701 - Philosophy of fine & decorative arts
11
744 - [Unassigned]
11
303 - Social processes
10
604 - Special topics
10
688 - Other final products & packaging
10
729 - Design & decoration
10
158 - Applied psychology
9
380 - Commerce, communications & transportation
9
624 - Civil engineering
8
791 - Public performances
8
more ...