Classification
330 - Economics
3,586
005 - Computer programming, programs & data
1,602
620 - Engineering & allied operations
1,097
616 - Diseases
1,035
610 - Medicine & health
990
006 - Special computer methods
957
004 - Data processing & computer science
934
621 - Applied physics
727
333 - Economics of land & energy
717
658 - General management
702
320 - Political science
634
530 - Physics
603
519 - Probabilities & applied mathematics
569
571 - Physiology & related subjects
538
600 - Technology
536
000 - Computer science, information & general works
447
500 - Natural sciences & mathematics
398
572 - Biochemistry
378
515 - Analysis
364
363 - Other social problems & services
352
612 - Human physiology
345
700 - The arts; fine & decorative arts
345
300 - Social sciences
325
900 - History & geography
305
340 - Law
290
380 - Commerce, communications & transportation
287
331 - Labor economics
286
003 - Systems
278
570 - Life sciences; biology
256
338 - Production
239
551 - Geology, hydrology & meteorology
223
304 - Factors affecting social behavior
222
541 - Physical chemistry
218
615 - Pharmacology & therapeutics
197
629 - Other branches of engineering
194
580 - Plants (Botany)
193
820 - English & Old English literatures
190
370 - Education
189
539 - Modern physics
189
577 - Ecology
152
630 - Agriculture & related technologies
142
332 - Financial economics
136
518 - Numerical analysis
133
510 - Mathematics
125
576 - Genetics & evolution
121
670 - Manufacturing
120
617 - Surgery & related medical specialties
119
302 - Social interaction
117
531 - Classical mechanics; solid mechanics
116
100 - Philosophy & psychology
115
more ...