Classification
530 - Physics
10
621 - Applied physics
5
616 - Diseases
3
620 - Engineering & allied operations
3
526 - Mathematical geography
2
550 - Earth sciences
2
512 - Algebra
1
520 - Astronomy & allied sciences
1
535 - Light & infrared & ultraviolet phenomena
1
537 - Electricity & electronics
1
539 - Modern physics
1
543 - Analytical chemistry
1
546 - Inorganic chemistry
1
610 - Medicine & health
1
611 - Human anatomy, cytology & histology
1
693 - Specific materials & purposes
1