Classification
306 - Culture & institutions
610 - Medicine & health
13
305 - Social groups
10
330 - Economics
3
500 - Natural sciences & mathematics
3
700 - The arts; fine & decorative arts
2
100 - Philosophy & psychology
1
303 - Social processes
1
332 - Financial economics
1
339 - Macroeconomics & related topics
1
340 - Law
1
361 - Social problems & social welfare in general
1
381 - Commerce
1
641 - Food & drink
1
741 - Drawing & drawings
1
900 - History & geography
1