Classification
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720 - Architecture
6
001 - Knowledge
5
003 - Systems
5
530 - Physics
5
650 - Management & auxiliary services
5
657 - Accounting
5
800 - Literature & rhetoric
5
158 - Applied psychology
4
541 - Physical chemistry
4
100 - Philosophy & psychology
3
304 - Factors affecting social behavior
3
332 - Financial economics
3
414 - Phonology & phonetics
3
526 - Mathematical geography
3
581 - Specific topics in natural history
3
534 - Sound & related vibrations
2
542 - Techniques, equipment & materials
2
549 - Mineralogy
2
553 - Economic geology
2
627 - Hydraulic engineering
2
634 - Orchards, fruits & forestry
2
770 - Photography, photographs & computer art
2
152 - Perception, movement, emotions & drives
1
170 - Ethics
1
336 - Public finance
1
337 - International economics
1
341 - Law of nations
1
344 - Labor, social, education & cultural law
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
368 - Insurance
1
374 - Adult education
1
382 - International commerce
1
400 - Language
1
449 - Occitan & Catalan
1
515 - Analysis
1
520 - Astronomy & allied sciences
1
523 - Specific celestial bodies & phenomena
1
535 - Light & infrared & ultraviolet phenomena
1
537 - Electricity & electronics
1
539 - Modern physics
1
579 - Microorganisms, fungi & algae
1
604 - Special topics
1
633 - Field & plantation crops
1
635 - Garden crops (Horticulture)
1
663 - Beverage technology
1
667 - Cleaning, color & coating technologies
1
674 - Lumber processing, wood products & cork
1
677 - Textiles
1
691 - Building materials
1
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