Classification
370 - Education
16
330 - Economics
9
616 - Diseases
6
320 - Political science
4
338 - Production
2
340 - Law
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
540 - Chemistry & allied sciences
2
003 - Systems
1
004 - Data processing & computer science
1
100 - Philosophy & psychology
1
300 - Social sciences
1
327 - International relations
1
371 - Schools & their activities; special education
1
519 - Probabilities & applied mathematics
1
613 - Personal health & safety
1
614 - Incidence & prevention of disease
1
658 - General management
1
700 - The arts; fine & decorative arts
1
780 - Music
1
800 - Literature & rhetoric
1
900 - History & geography
1