Classification
530 - Physics
240
621 - Applied physics
59
620 - Engineering & allied operations
51
500 - Natural sciences & mathematics
10
700 - The arts; fine & decorative arts
10
537 - Electricity & electronics
9
539 - Modern physics
8
333 - Economics of land & energy
6
535 - Light & infrared & ultraviolet phenomena
6
538 - Magnetism
6
541 - Physical chemistry
5
548 - Crystallography
5
540 - Chemistry & allied sciences
4
006 - Special computer methods
3
791 - Public performances
3
520 - Astronomy & allied sciences
2
526 - Mathematical geography
2
536 - Heat
2
543 - Analytical chemistry
2
546 - Inorganic chemistry
2
550 - Earth sciences
2
691 - Building materials
2
000 - Computer science, information & general works
1
003 - Systems
1
005 - Computer programming, programs & data
1
321 - Systems of governments & states
1
330 - Economics
1
510 - Mathematics
1
512 - Algebra
1
515 - Analysis
1
532 - Fluid mechanics; liquid mechanics
1
580 - Plants (Botany)
1
600 - Technology
1
610 - Medicine & health
1