Classification
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618 - Gynecology, obstetrics, pediatrics & geriatrics
3
820 - English & Old English literatures
3
336 - Public finance
2
344 - Labor, social, education & cultural law
2
380 - Commerce, communications & transportation
2
530 - Physics
2
550 - Earth sciences
2
634 - Orchards, fruits & forestry
2
641 - Food & drink
2
650 - Management & auxiliary services
2
657 - Accounting
2
659 - Advertising & public relations
2
664 - Food technology
2
665 - Industrial oils, fats, waxes & gases
2
020 - Library & information sciences
1
025 - Library operations
1
100 - Philosophy & psychology
1
150 - Psychology
1
230 - Christianity & Christian theology
1
307 - Communities
1
323 - Civil & political rights
1
337 - International economics
1
341 - Law of nations
1
342 - Constitutional & administrative law
1
351 - Public administration
1
362 - Social welfare problems & services
1
390 - Customs, etiquette & folklore
1
410 - Linguistics
1
507 - Education, research & related topics
1
532 - Fluid mechanics; liquid mechanics
1
534 - Sound & related vibrations
1
539 - Modern physics
1
540 - Chemistry & allied sciences
1
541 - Physical chemistry
1
543 - Analytical chemistry
1
570 - Life sciences; biology
1
571 - Physiology & related subjects
1
572 - Biochemistry
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
624 - Civil engineering
1
628 - Sanitary & municipal engineering
1
780 - Music
1
791 - Public performances
1
808 - Rhetoric & collections of literature
1
930 - History of ancient world to ca. 499
1
940 - History of Europe
1