Classification
610 - Medicine & health
53
330 - Economics
6
300 - Social sciences
5
616 - Diseases
5
700 - The arts; fine & decorative arts
4
500 - Natural sciences & mathematics
3
519 - Probabilities & applied mathematics
3
658 - General management
3
800 - Literature & rhetoric
3
900 - History & geography
3
004 - Data processing & computer science
2
100 - Philosophy & psychology
2
170 - Ethics
2
302 - Social interaction
2
338 - Production
2
400 - Language
2
510 - Mathematics
2
612 - Human physiology
2
000 - Computer science, information & general works
1
005 - Computer programming, programs & data
1
006 - Special computer methods
1
140 - Specific philosophical schools
1
200 - Religion
1
301 - Sociology & anthropology
1
306 - Culture & institutions
1
320 - Political science
1
327 - International relations
1
331 - Labor economics
1
332 - Financial economics
1
333 - Economics of land & energy
1
361 - Social problems & social welfare in general
1
381 - Commerce
1
384 - Communications; telecommunication
1
410 - Linguistics
1
570 - Life sciences; biology
1
572 - Biochemistry
1
670 - Manufacturing
1
809 - History, description & criticism
1