Classification
150 - Psychology
102
301 - Sociology & anthropology
66
300 - Social sciences
52
158 - Applied psychology
21
616 - Diseases
17
658 - General management
15
155 - Differential & developmental psychology
14
302 - Social interaction
14
519 - Probabilities & applied mathematics
13
370 - Education
6
004 - Data processing & computer science
5
005 - Computer programming, programs & data
5
100 - Philosophy & psychology
4
153 - Mental processes & intelligence
4
306 - Culture & institutions
3
320 - Political science
3
621 - Applied physics
3
660 - Chemical engineering
3
340 - Law
2
371 - Schools & their activities; special education
2
650 - Management & auxiliary services
2
128 - Humankind
1
140 - Specific philosophical schools
1
170 - Ethics
1
296 - Judaism
1
304 - Factors affecting social behavior
1
364 - Criminology
1
380 - Commerce, communications & transportation
1
500 - Natural sciences & mathematics
1
510 - Mathematics
1
570 - Life sciences; biology
1
600 - Technology
1
612 - Human physiology
1
618 - Gynecology, obstetrics, pediatrics & geriatrics
1
629 - Other branches of engineering
1
796 - Athletic & outdoor sports & games
1