Classification
700 - The arts; fine & decorative arts
319
600 - Technology
278
000 - Computer science, information & general works
226
620 - Engineering & allied operations
193
900 - History & geography
163
610 - Medicine & health
157
333 - Economics of land & energy
147
140 - Specific philosophical schools
88
380 - Commerce, communications & transportation
79
363 - Other social problems & services
78
330 - Economics
66
580 - Plants (Botany)
60
576 - Genetics & evolution
42
500 - Natural sciences & mathematics
39
630 - Agriculture & related technologies
37
400 - Language
36
720 - Architecture
32
658 - General management
28
530 - Physics
25
370 - Education
24
551 - Geology, hydrology & meteorology
24
320 - Political science
22
800 - Literature & rhetoric
20
540 - Chemistry & allied sciences
19
340 - Law
16
414 - Phonology & phonetics
15
100 - Philosophy & psychology
7
170 - Ethics
7
300 - Social sciences
7
410 - Linguistics
7
581 - Specific topics in natural history
7
612 - Human physiology
7
615 - Pharmacology & therapeutics
7
770 - Photography, photographs & computer art
5
550 - Earth sciences
4
780 - Music
3
120 - Epistemology, causation & humankind
1
160 - Logic
1
304 - Factors affecting social behavior
1
336 - Public finance
1
361 - Social problems & social welfare in general
1
520 - Astronomy & allied sciences
1
650 - Management & auxiliary services
1
657 - Accounting
1
791 - Public performances
1