Classification
530 - Physics
400 - Language
17
100 - Philosophy & psychology
10
000 - Computer science, information & general works
7
120 - Epistemology, causation & humankind
5
370 - Education
5
500 - Natural sciences & mathematics
5
600 - Technology
5
200 - Religion
4
333 - Economics of land & energy
4
410 - Linguistics
4
576 - Genetics & evolution
4
620 - Engineering & allied operations
4
700 - The arts; fine & decorative arts
4
140 - Specific philosophical schools
3
170 - Ethics
3
900 - History & geography
3
006 - Special computer methods
2
340 - Law
2
551 - Geology, hydrology & meteorology
2
063 - Organizations in central Europe; in Germany
1
296 - Judaism
1
320 - Political science
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
550 - Earth sciences
1
610 - Medicine & health
1
800 - Literature & rhetoric
1