Classification
330 - Economics
4,446
005 - Computer programming, programs & data
3,179
004 - Data processing & computer science
1,125
320 - Political science
1,110
610 - Medicine & health
1,085
333 - Economics of land & energy
1,082
658 - General management
952
363 - Other social problems & services
928
620 - Engineering & allied operations
842
331 - Labor economics
801
616 - Diseases
770
621 - Applied physics
758
340 - Law
721
006 - Special computer methods
686
000 - Computer science, information & general works
563
500 - Natural sciences & mathematics
483
600 - Technology
482
304 - Factors affecting social behavior
431
338 - Production
411
700 - The arts; fine & decorative arts
406
300 - Social sciences
384
571 - Physiology & related subjects
378
630 - Agriculture & related technologies
364
551 - Geology, hydrology & meteorology
362
577 - Ecology
330
341 - Law of nations
300
900 - History & geography
283
580 - Plants (Botany)
279
380 - Commerce, communications & transportation
252
332 - Financial economics
245
140 - Specific philosophical schools
203
343 - Military, tax, trade & industrial law
162
384 - Communications; telecommunication
162
617 - Surgery & related medical specialties
158
615 - Pharmacology & therapeutics
154
628 - Sanitary & municipal engineering
153
570 - Life sciences; biology
152
302 - Social interaction
149
370 - Education
146
660 - Chemical engineering
138
612 - Human physiology
136
364 - Criminology
135
540 - Chemistry & allied sciences
134
342 - Constitutional & administrative law
133
572 - Biochemistry
130
670 - Manufacturing
129
374 - Adult education
124
344 - Labor, social, education & cultural law
120
306 - Culture & institutions
119
579 - Microorganisms, fungi & algae
114
more ...