000 - Computer science, information, general works
1,027
100 - Philosophy & psychology
2,912
200 - Religion
973
300 - Social sciences
18,741
400 - Language
667
500 - Natural sciences and mathematics
1,405
600 - Technology (Applied sciences)
4,032
700 - The arts
2,754
800 - Literature (Belles-lettres) and rhetoric
4,789
900 - History & geography
3,725
610 - Medicine and health
1,563
Ver registros
650 - Management and auxiliary services
1,328
Ver registros
620 - Engineering and allied operations
499
Ver registros
630 - Agriculture and related technologies
183
Ver registros
640 - Home and family management
175
Ver registros
690 - Construction of buildings
91
Ver registros
660 - Chemical engineering
76
Ver registros
680 - Manufacture of products for specific uses
41
Ver registros
600 - Technology (Applied sciences)
39
Ver registros
670 - Manufacturing
38
Ver registros
330 - Economics
4
Ver registros
150 - Psychology
2
Ver registros
380 - Commerce, communications, transportation
2
Ver registros
720 - Architecture
2
Ver registros
000 - Computer science, information, general works
1
Ver registros
070 - Documentary, educational, news media; journalism
1
Ver registros
170 - Ethics (Moral philosophy)
1
Ver registros
300 - Social sciences
1
Ver registros
360 - Social problems and services; associations
1
Ver registros
740 - Graphic arts and decorative arts
1
Ver registros