Classification
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613 - Personal health & safety
10
618 - Gynecology, obstetrics, pediatrics & geriatrics
10
770 - Photography, photographs & computer art
10
350 - Public administration & military science
9
120 - Epistemology, causation & humankind
8
174 - Occupational ethics
8
331 - Labor economics
8
364 - Criminology
8
302 - Social interaction
7
520 - Astronomy & allied sciences
7
657 - Accounting
7
001 - Knowledge
6
297 - Islam, Babism & Bahai Faith
6
305 - Social groups
5
550 - Earth sciences
5
629 - Other branches of engineering
5
398 - Folklore
4
621 - Applied physics
4
745 - Decorative arts
4
368 - Insurance
3
650 - Management & auxiliary services
3
150 - Psychology
2
158 - Applied psychology
2
160 - Logic
2
353 - Specific fields of public administration
2
365 - Penal & related institutions
2
371 - Schools & their activities; special education
2
372 - Elementary education
2
602 - Miscellany
2
660 - Chemical engineering
2
011 - Bibliographies
1
025 - Library operations
1
153 - Mental processes & intelligence
1
296 - Judaism
1
332 - Financial economics
1
355 - Military science
1
394 - General customs
1
509 - Historical, geographic & persons treatment
1
510 - Mathematics
1
570 - Life sciences; biology
1
571 - Physiology & related subjects
1
572 - Biochemistry
1
617 - Surgery & related medical specialties
1
920 - Biography, genealogy & insignia
1
940 - History of Europe
1
956 - Middle East (Near East)
1