Classification
610 - Medicine & health
12
620 - Engineering & allied operations
11
547 - Organic chemistry
8
333 - Economics of land & energy
7
700 - The arts; fine & decorative arts
7
380 - Commerce, communications & transportation
5
530 - Physics
5
541 - Physical chemistry
5
600 - Technology
5
664 - Food technology
5
000 - Computer science, information & general works
4
363 - Other social problems & services
4
900 - History & geography
4
574 - [Unassigned]
3
580 - Plants (Botany)
3
621 - Applied physics
3
660 - Chemical engineering
3
320 - Political science
2
330 - Economics
2
340 - Law
2
551 - Geology, hydrology & meteorology
2
570 - Life sciences; biology
2
668 - Technology of other organic products
2
140 - Specific philosophical schools
1
170 - Ethics
1
500 - Natural sciences & mathematics
1
507 - Education, research & related topics
1
540 - Chemistry & allied sciences
1
550 - Earth sciences
1
576 - Genetics & evolution
1
612 - Human physiology
1
616 - Diseases
1
667 - Cleaning, color & coating technologies
1
676 - Pulp & paper technology
1