Classification
530 - Physics
58
501 - Philosophy & theory
7
576 - Genetics & evolution
5
500 - Natural sciences & mathematics
3
520 - Astronomy & allied sciences
3
571 - Physiology & related subjects
3
128 - Humankind
2
535 - Light & infrared & ultraviolet phenomena
2
570 - Life sciences; biology
2
620 - Engineering & allied operations
2
621 - Applied physics
2
003 - Systems
1
004 - Data processing & computer science
1
006 - Special computer methods
1
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
523 - Specific celestial bodies & phenomena
1
536 - Heat
1
539 - Modern physics
1
541 - Physical chemistry
1
550 - Earth sciences
1
572 - Biochemistry
1
577 - Ecology
1
590 - Animals (Zoology)
1
612 - Human physiology
1
616 - Diseases
1
660 - Chemical engineering
1
910 - Geography & travel
1