Classification
320 - Political science
377
330 - Economics
377
300 - Social sciences
57
340 - Law
28
900 - History & geography
23
630 - Agriculture & related technologies
20
700 - The arts; fine & decorative arts
6
370 - Education
4
160 - Logic
2
200 - Religion
2
500 - Natural sciences & mathematics
2
170 - Ethics
1
364 - Criminology
1
400 - Language
1
610 - Medicine & health
1
946 - Iberian Peninsula & adjacent islands
1