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Classification: 360 - Social problems & services; associations
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Classification: 600 - Technology
360 - Social problems & services; associations
600 - Technology
361 - Social problems & social welfare in general
5
610 - Medicine & health
4
000 - Computer science, information & general works
2
330 - Economics
2
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363 - Other social problems & services
2
551 - Geology, hydrology & meteorology
2
620 - Engineering & allied operations
2
170 - Ethics
1
300 - Social sciences
1
320 - Political science
1
333 - Economics of land & energy
1
364 - Criminology
1
370 - Education
1
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1
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