Classification
300 - Social sciences
9
302 - Social interaction
9
330 - Economics
9
500 - Natural sciences & mathematics
658 - General management
9
670 - Manufacturing
153 - Mental processes & intelligence
1
331 - Labor economics
1
338 - Production
1
381 - Commerce
1
510 - Mathematics
1
519 - Probabilities & applied mathematics
1
629 - Other branches of engineering
1
650 - Management & auxiliary services
1
745 - Decorative arts
1