Classification
515 - Analysis
4
530 - Physics
3
001 - Knowledge
2
300 - Social sciences
2
501 - Philosophy & theory
2
617 - Surgery & related medical specialties
2
004 - Data processing & computer science
1
330 - Economics
1
500 - Natural sciences & mathematics
1
520 - Astronomy & allied sciences
1
535 - Light & infrared & ultraviolet phenomena
1
536 - Heat
1
539 - Modern physics
1
541 - Physical chemistry
1
616 - Diseases
1
621 - Applied physics
1
624 - Civil engineering
1
641 - Food & drink
1
658 - General management
1
664 - Food technology
1
808 - Rhetoric & collections of literature
1