Classification
700 - The arts; fine & decorative arts
900 - History & geography
600 - Technology
892
620 - Engineering & allied operations
846
320 - Political science
462
333 - Economics of land & energy
459
330 - Economics
402
800 - Literature & rhetoric
245
363 - Other social problems & services
236
000 - Computer science, information & general works
234
380 - Commerce, communications & transportation
219
140 - Specific philosophical schools
211
720 - Architecture
167
100 - Philosophy & psychology
161
610 - Medicine & health
159
576 - Genetics & evolution
140
580 - Plants (Botany)
128
340 - Law
122
300 - Social sciences
119
400 - Language
106
200 - Religion
101
780 - Music
84
370 - Education
80
410 - Linguistics
74
500 - Natural sciences & mathematics
70
551 - Geology, hydrology & meteorology
64
301 - Sociology & anthropology
62
414 - Phonology & phonetics
50
581 - Specific topics in natural history
45
630 - Agriculture & related technologies
45
791 - Public performances
43
530 - Physics
42
770 - Photography, photographs & computer art
41
540 - Chemistry & allied sciences
38
170 - Ethics
30
304 - Factors affecting social behavior
25
658 - General management
25
297 - Islam, Babism & Bahai Faith
11
612 - Human physiology
9
361 - Social problems & social welfare in general
8
943 - Central Europe; Germany
8
120 - Epistemology, causation & humankind
7
398 - Folklore
7
891 - East Indo-European & Celtic literatures
7
160 - Logic
6
809 - History, description & criticism
6
830 - Literatures of Germanic languages
6
520 - Astronomy & allied sciences
5
230 - Christianity & Christian theology
4
296 - Judaism
4
more ...