Classification
prev ...
025 - Library operations
149
371 - Schools & their activities; special education
147
120 - Epistemology, causation & humankind
145
307 - Communities
143
572 - Biochemistry
142
629 - Other branches of engineering
139
150 - Psychology
135
361 - Social problems & social welfare in general
121
617 - Surgery & related medical specialties
119
530 - Physics
118
410 - Linguistics
114
581 - Specific topics in natural history
108
323 - Civil & political rights
107
577 - Ecology
105
400 - Language
104
614 - Incidence & prevention of disease
100
720 - Architecture
96
540 - Chemistry & allied sciences
94
630 - Agriculture & related technologies
87
342 - Constitutional & administrative law
85
613 - Personal health & safety
82
003 - Systems
78
364 - Criminology
75
590 - Animals (Zoology)
69
345 - Criminal law
67
327 - International relations
65
344 - Labor, social, education & cultural law
62
362 - Social welfare problems & services
60
153 - Mental processes & intelligence
59
174 - Occupational ethics
58
780 - Music
53
510 - Mathematics
52
550 - Earth sciences
51
670 - Manufacturing
50
820 - English & Old English literatures
50
618 - Gynecology, obstetrics, pediatrics & geriatrics
49
520 - Astronomy & allied sciences
42
809 - History, description & criticism
42
155 - Differential & developmental psychology
39
660 - Chemical engineering
38
414 - Phonology & phonetics
36
384 - Communications; telecommunication
35
381 - Commerce
34
343 - Military, tax, trade & industrial law
33
128 - Humankind
32
624 - Civil engineering
32
332 - Financial economics
27
657 - Accounting
27
355 - Military science
26
515 - Analysis
25
more ...