Classification
020 - Library & information sciences
304
000 - Computer science, information & general works
205
010 - Bibliography
167
025 - Library operations
152
820 - English & Old English literatures
120
500 - Natural sciences & mathematics
109
900 - History & geography
79
330 - Economics
63
700 - The arts; fine & decorative arts
59
658 - General management
58
600 - Technology
55
320 - Political science
49
340 - Law
30
005 - Computer programming, programs & data
28
140 - Specific philosophical schools
27
300 - Social sciences
27
610 - Medicine & health
25
570 - Life sciences; biology
24
620 - Engineering & allied operations
24
380 - Commerce, communications & transportation
21
027 - General libraries
20
333 - Economics of land & energy
20
004 - Data processing & computer science
19
331 - Labor economics
19
400 - Language
19
370 - Education
18
100 - Philosophy & psychology
16
302 - Social interaction
16
363 - Other social problems & services
16
006 - Special computer methods
15
200 - Religion
14
338 - Production
12
800 - Literature & rhetoric
12
384 - Communications; telecommunication
11
028 - Reading & use of other information media
10
720 - Architecture
10
650 - Management & auxiliary services
9
001 - Knowledge
8
410 - Linguistics
8
540 - Chemistry & allied sciences
8
780 - Music
8
576 - Genetics & evolution
7
745 - Decorative arts
7
070 - News media, journalism & publishing
6
519 - Probabilities & applied mathematics
6
615 - Pharmacology & therapeutics
6
260 - Social & ecclesiastical theology
5
304 - Factors affecting social behavior
5
381 - Commerce
5
630 - Agriculture & related technologies
5
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