Classification
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379 - Public policy issues in education
1
380 - Commerce, communications & transportation
564
384 - Communications; telecommunication
14
394 - General customs
1
398 - Folklore
4
400 - Language
66
410 - Linguistics
30
414 - Phonology & phonetics
69
500 - Natural sciences & mathematics
297
509 - Historical, geographic & persons treatment
1
510 - Mathematics
1
519 - Probabilities & applied mathematics
14
520 - Astronomy & allied sciences
9
530 - Physics
42
534 - Sound & related vibrations
1
540 - Chemistry & allied sciences
245
550 - Earth sciences
5
551 - Geology, hydrology & meteorology
130
570 - Life sciences; biology
2
571 - Physiology & related subjects
1
572 - Biochemistry
1
576 - Genetics & evolution
202
580 - Plants (Botany)
609
581 - Specific topics in natural history
114
590 - Animals (Zoology)
15
600 - Technology
919
602 - Miscellany
2
610 - Medicine & health
611 - Human anatomy, cytology & histology
1
612 - Human physiology
286
613 - Personal health & safety
10
614 - Incidence & prevention of disease
12
615 - Pharmacology & therapeutics
185
616 - Diseases
53
617 - Surgery & related medical specialties
2
618 - Gynecology, obstetrics, pediatrics & geriatrics
31
620 - Engineering & allied operations
485
621 - Applied physics
4
629 - Other branches of engineering
5
630 - Agriculture & related technologies
208
650 - Management & auxiliary services
12
657 - Accounting
8
658 - General management
121
660 - Chemical engineering
2
700 - The arts; fine & decorative arts
1,520
720 - Architecture
55
745 - Decorative arts
4
770 - Photography, photographs & computer art
10
780 - Music
26
791 - Public performances
14
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