Classification
620 - Engineering & allied operations
600 - Technology
143
900 - History & geography
111
700 - The arts; fine & decorative arts
104
333 - Economics of land & energy
95
363 - Other social problems & services
60
330 - Economics
55
000 - Computer science, information & general works
49
380 - Commerce, communications & transportation
36
610 - Medicine & health
29
140 - Specific philosophical schools
27
576 - Genetics & evolution
26
580 - Plants (Botany)
24
720 - Architecture
22
320 - Political science
19
370 - Education
16
630 - Agriculture & related technologies
16
500 - Natural sciences & mathematics
15
658 - General management
14
551 - Geology, hydrology & meteorology
11
340 - Law
10
400 - Language
9
800 - Literature & rhetoric
8
300 - Social sciences
7
530 - Physics
7
304 - Factors affecting social behavior
6
414 - Phonology & phonetics
6
100 - Philosophy & psychology
5
170 - Ethics
4
581 - Specific topics in natural history
4
361 - Social problems & social welfare in general
2
381 - Commerce
2
657 - Accounting
2
745 - Decorative arts
2
120 - Epistemology, causation & humankind
1
510 - Mathematics
1
520 - Astronomy & allied sciences
1
540 - Chemistry & allied sciences
1
688 - Other final products & packaging
1
780 - Music
1