Classification
540 - Chemistry & allied sciences
759
570 - Life sciences; biology
50
620 - Engineering & allied operations
40
610 - Medicine & health
38
641 - Food & drink
35
664 - Food technology
35
615 - Pharmacology & therapeutics
31
541 - Physical chemistry
26
547 - Organic chemistry
26
572 - Biochemistry
26
546 - Inorganic chemistry
23
530 - Physics
19
621 - Applied physics
12
510 - Mathematics
11
660 - Chemical engineering
11
543 - Analytical chemistry
10
580 - Plants (Botany)
9
677 - Textiles
8
670 - Manufacturing
6
571 - Physiology & related subjects
5
363 - Other social problems & services
4
507 - Education, research & related topics
4
509 - Historical, geographic & persons treatment
4
519 - Probabilities & applied mathematics
4
550 - Earth sciences
4
658 - General management
4
900 - History & geography
4
500 - Natural sciences & mathematics
3
577 - Ecology
3
616 - Diseases
3
629 - Other branches of engineering
3
630 - Agriculture & related technologies
3
650 - Management & auxiliary services
3
333 - Economics of land & energy
2
338 - Production
2
502 - Miscellany
2
512 - Algebra
2
520 - Astronomy & allied sciences
2
531 - Classical mechanics; solid mechanics
2
539 - Modern physics
2
551 - Geology, hydrology & meteorology
2
617 - Surgery & related medical specialties
2
628 - Sanitary & municipal engineering
2
634 - Orchards, fruits & forestry
2
691 - Building materials
2
004 - Data processing & computer science
1
336 - Public finance
1
346 - Private law
1
370 - Education
1
371 - Schools & their activities; special education
1
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