Classification
500 - Natural sciences & mathematics
000 - Computer science, information & general works
25
700 - The arts; fine & decorative arts
18
576 - Genetics & evolution
7
330 - Economics
6
658 - General management
6
333 - Economics of land & energy
5
520 - Astronomy & allied sciences
5
620 - Engineering & allied operations
5
005 - Computer programming, programs & data
4
340 - Law
4
600 - Technology
4
300 - Social sciences
3
302 - Social interaction
3
380 - Commerce, communications & transportation
3
670 - Manufacturing
3
003 - Systems
2
140 - Specific philosophical schools
2
331 - Labor economics
2
530 - Physics
2
581 - Specific topics in natural history
2
610 - Medicine & health
2
004 - Data processing & computer science
1
006 - Special computer methods
1
158 - Applied psychology
1
303 - Social processes
1
363 - Other social problems & services
1
370 - Education
1
384 - Communications; telecommunication
1
410 - Linguistics
1
414 - Phonology & phonetics
1
510 - Mathematics
1
519 - Probabilities & applied mathematics
1
531 - Classical mechanics; solid mechanics
1
580 - Plants (Botany)
1
650 - Management & auxiliary services
1
745 - Decorative arts
1
791 - Public performances
1
800 - Literature & rhetoric
1
900 - History & geography
1