Classification
700 - The arts; fine & decorative arts
900 - History & geography
320 - Political science
77
330 - Economics
38
333 - Economics of land & energy
31
800 - Literature & rhetoric
28
363 - Other social problems & services
26
140 - Specific philosophical schools
24
300 - Social sciences
21
370 - Education
21
600 - Technology
21
100 - Philosophy & psychology
20
200 - Religion
19
380 - Commerce, communications & transportation
19
400 - Language
18
620 - Engineering & allied operations
18
000 - Computer science, information & general works
16
410 - Linguistics
15
720 - Architecture
13
340 - Law
12
780 - Music
12
576 - Genetics & evolution
11
301 - Sociology & anthropology
10
770 - Photography, photographs & computer art
10
610 - Medicine & health
9
304 - Factors affecting social behavior
7
551 - Geology, hydrology & meteorology
7
581 - Specific topics in natural history
7
500 - Natural sciences & mathematics
4
398 - Folklore
3
520 - Astronomy & allied sciences
3
580 - Plants (Botany)
3
630 - Agriculture & related technologies
3
791 - Public performances
3
943 - Central Europe; Germany
3
170 - Ethics
2
297 - Islam, Babism & Bahai Faith
2
360 - Social problems & services; associations
2
530 - Physics
2
016 - Bibliographies of works on specific subjects
1
120 - Epistemology, causation & humankind
1
155 - Differential & developmental psychology
1
193 - Philosophy of Germany & Austria
1
296 - Judaism
1
354 - Administration of economy & environment
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
550 - Earth sciences
1
612 - Human physiology
1
658 - General management
1