Classification
610 - Medicine & health
554
700 - The arts; fine & decorative arts
203
000 - Computer science, information & general works
128
333 - Economics of land & energy
101
580 - Plants (Botany)
82
140 - Specific philosophical schools
78
616 - Diseases
69
570 - Life sciences; biology
61
600 - Technology
58
330 - Economics
54
380 - Commerce, communications & transportation
51
540 - Chemistry & allied sciences
35
612 - Human physiology
34
370 - Education
32
620 - Engineering & allied operations
31
615 - Pharmacology & therapeutics
27
363 - Other social problems & services
21
900 - History & geography
21
576 - Genetics & evolution
19
100 - Philosophy & psychology
15
618 - Gynecology, obstetrics, pediatrics & geriatrics
14
304 - Factors affecting social behavior
13
500 - Natural sciences & mathematics
12
617 - Surgery & related medical specialties
9
414 - Phonology & phonetics
7
630 - Agriculture & related technologies
7
581 - Specific topics in natural history
6
340 - Law
5
613 - Personal health & safety
5
800 - Literature & rhetoric
5
170 - Ethics
4
530 - Physics
4
551 - Geology, hydrology & meteorology
4
614 - Incidence & prevention of disease
4
300 - Social sciences
3
320 - Political science
3
720 - Architecture
3
770 - Photography, photographs & computer art
3
362 - Social welfare problems & services
2
572 - Biochemistry
2
658 - General management
2
780 - Music
2
160 - Logic
1
200 - Religion
1
361 - Social problems & social welfare in general
1
400 - Language
1
410 - Linguistics
1
541 - Physical chemistry
1
571 - Physiology & related subjects
1
599 - Mammals
1
more ...