Classification
150 - Psychology
151
616 - Diseases
83
100 - Philosophy & psychology
46
900 - History & geography
24
800 - Literature & rhetoric
19
155 - Differential & developmental psychology
13
700 - The arts; fine & decorative arts
13
140 - Specific philosophical schools
12
158 - Applied psychology
11
610 - Medicine & health
11
300 - Social sciences
10
170 - Ethics
9
200 - Religion
9
301 - Sociology & anthropology
8
370 - Education
8
142 - Critical philosophy
5
302 - Social interaction
5
306 - Culture & institutions
5
330 - Economics
5
333 - Economics of land & energy
5
500 - Natural sciences & mathematics
4
153 - Mental processes & intelligence
3
320 - Political science
3
340 - Law
3
363 - Other social problems & services
3
410 - Linguistics
3
530 - Physics
3
576 - Genetics & evolution
3
612 - Human physiology
3
658 - General management
3
720 - Architecture
3
791 - Public performances
3
891 - East Indo-European & Celtic literatures
3
001 - Knowledge
2
128 - Humankind
2
160 - Logic
2
296 - Judaism
2
305 - Social groups
2
380 - Commerce, communications & transportation
2
400 - Language
2
581 - Specific topics in natural history
2
600 - Technology
2
615 - Pharmacology & therapeutics
2
618 - Gynecology, obstetrics, pediatrics & geriatrics
2
770 - Photography, photographs & computer art
2
780 - Music
2
809 - History, description & criticism
2
000 - Computer science, information & general works
1
006 - Special computer methods
1
120 - Epistemology, causation & humankind
1
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