Classification
363 - Other social problems & services
551 - Geology, hydrology & meteorology
600 - Technology
3
610 - Medicine & health
620 - Engineering & allied operations
3
330 - Economics
2
333 - Economics of land & energy
2
630 - Agriculture & related technologies
2
700 - The arts; fine & decorative arts
2
370 - Education
1
540 - Chemistry & allied sciences
1