Classification
400 - Language
20
410 - Linguistics
18
420 - English & Old English
12
658 - General management
8
306 - Culture & institutions
6
005 - Computer programming, programs & data
4
301 - Sociology & anthropology
4
330 - Economics
4
414 - Phonology & phonetics
4
423 - English dictionaries
4
000 - Computer science, information & general works
3
004 - Data processing & computer science
3
300 - Social sciences
2
320 - Political science
2
331 - Labor economics
2
384 - Communications; telecommunication
2
398 - Folklore
2
417 - Dialectology & historical linguistics
2
491 - East Indo-European & Celtic languages
2
500 - Natural sciences & mathematics
2
616 - Diseases
2
740 - Drawing & decorative arts
2
741 - Drawing & drawings
2
800 - Literature & rhetoric
2
006 - Special computer methods
1
130 - Parapsychology & occultism
1
158 - Applied psychology
1
302 - Social interaction
1
303 - Social processes
1
332 - Financial economics
1
338 - Production
1
370 - Education
1
380 - Commerce, communications & transportation
1
381 - Commerce
1
418 - Standard usage & applied linguistics
1
437 - German language variations
1
496 - African languages
1
519 - Probabilities & applied mathematics
1
614 - Incidence & prevention of disease
1
615 - Pharmacology & therapeutics
1
620 - Engineering & allied operations
1
650 - Management & auxiliary services
1
700 - The arts; fine & decorative arts
1
745 - Decorative arts
1
778 - Fields & kinds of photography
1
780 - Music
1
791 - Public performances
1
820 - English & Old English literatures
1
900 - History & geography
1