Classification
745 - Decorative arts
311
331 - Labor economics
170
620 - Engineering & allied operations
140
000 - Computer science, information & general works
113
741 - Drawing & drawings
86
720 - Architecture
73
621 - Applied physics
34
004 - Data processing & computer science
23
600 - Technology
20
006 - Special computer methods
16
700 - The arts; fine & decorative arts
12
658 - General management
11
900 - History & geography
10
500 - Natural sciences & mathematics
9
604 - Special topics
7
302 - Social interaction
6
140 - Specific philosophical schools
5
333 - Economics of land & energy
5
580 - Plants (Botany)
5
610 - Medicine & health
5
615 - Pharmacology & therapeutics
5
330 - Economics
4
001 - Knowledge
3
624 - Civil engineering
3
660 - Chemical engineering
3
729 - Design & decoration
3
770 - Photography, photographs & computer art
3
005 - Computer programming, programs & data
2
340 - Law
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
510 - Mathematics
2
516 - Geometry
2
547 - Organic chemistry
2
570 - Life sciences; biology
2
668 - Technology of other organic products
2
670 - Manufacturing
2
792 - Stage presentations
2
011 - Bibliographies
1
153 - Mental processes & intelligence
1
208 - Sources
1
300 - Social sciences
1
370 - Education
1
400 - Language
1
414 - Phonology & phonetics
1
511 - General principles of mathematics
1
530 - Physics
1
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
661 - Industrial chemicals
1
more ...