Classification
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362 - Social welfare problems & services
10
530 - Physics
10
616 - Diseases
10
910 - Geography & travel
9
302 - Social interaction
7
410 - Linguistics
6
660 - Chemical engineering
6
940 - History of Europe
6
150 - Psychology
5
303 - Social processes
5
360 - Social problems & services; associations
5
590 - Animals (Zoology)
5
004 - Data processing & computer science
4
120 - Epistemology, causation & humankind
4
155 - Differential & developmental psychology
4
364 - Criminology
4
510 - Mathematics
4
572 - Biochemistry
4
615 - Pharmacology & therapeutics
4
005 - Computer programming, programs & data
3
550 - Earth sciences
3
592 - Invertebrates
3
618 - Gynecology, obstetrics, pediatrics & geriatrics
3
629 - Other branches of engineering
3
650 - Management & auxiliary services
3
657 - Accounting
3
930 - History of ancient world to ca. 499
3
297 - Islam, Babism & Bahai Faith
2
321 - Systems of governments & states
2
325 - International migration & colonization
2
332 - Financial economics
2
337 - International economics
2
341 - Law of nations
2
343 - Military, tax, trade & industrial law
2
344 - Labor, social, education & cultural law
2
350 - Public administration & military science
2
355 - Military science
2
372 - Elementary education
2
381 - Commerce
2
390 - Customs, etiquette & folklore
2
574 - [Unassigned]
2
621 - Applied physics
2
634 - Orchards, fruits & forestry
2
636 - Animal husbandry
2
770 - Photography, photographs & computer art
2
003 - Systems
1
006 - Special computer methods
1
070 - News media, journalism & publishing
1
158 - Applied psychology
1
160 - Logic
1
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