Classification
820 - English & Old English literatures
536
610 - Medicine & health
338
330 - Economics
240
320 - Political science
208
230 - Christianity & Christian theology
135
340 - Law
126
300 - Social sciences
80
658 - General management
63
900 - History & geography
60
006 - Special computer methods
49
170 - Ethics
44
200 - Religion
38
800 - Literature & rhetoric
36
005 - Computer programming, programs & data
34
290 - Other religions
34
940 - History of Europe
33
260 - Social & ecclesiastical theology
31
280 - Christian denominations & sects
31
630 - Agriculture & related technologies
31
530 - Physics
30
510 - Mathematics
29
370 - Education
28
620 - Engineering & allied operations
28
621 - Applied physics
27
520 - Astronomy & allied sciences
26
140 - Specific philosophical schools
25
420 - English & Old English
25
400 - Language
22
700 - The arts; fine & decorative arts
22
880 - Hellenic literatures; classical Greek
22
130 - Parapsychology & occultism
21
301 - Sociology & anthropology
20
338 - Production
20
360 - Social problems & services; associations
20
640 - Home & family management
20
500 - Natural sciences & mathematics
19
004 - Data processing & computer science
18
150 - Psychology
18
304 - Factors affecting social behavior
18
210 - Philosophy & theory of religion
17
410 - Linguistics
17
550 - Earth sciences
17
490 - Other languages
16
270 - History of Christianity & Christian church
15
730 - Plastic arts; sculpture
15
790 - Recreational & performing arts
15
100 - Philosophy & psychology
14
380 - Commerce, communications & transportation
14
600 - Technology
14
220 - Bible
13
more ...