Classification
004 - Data processing & computer science
1
200 - Religion
4
201 - Religious mythology & social theology
1
301 - Sociology & anthropology
1
305 - Social groups
2
306 - Culture & institutions
8
320 - Political science
3
327 - International relations
1
330 - Economics
1
338 - Production
2
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
364 - Criminology
1
370 - Education
5
407 - Education, research & related topics
5
511 - General principles of mathematics
1
551 - Geology, hydrology & meteorology
1
570 - Life sciences; biology
1
616 - Diseases
1
791 - Public performances
1