330 - Economics 15,147 610 - Medicine & health 11,728 620 - Engineering & allied operations 7,619 658 - General management 7,046 616 - Diseases 6,792 006 - Special computer methods 6,723 more ... 621 - Applied physics 6,216 005 - Computer programming, programs & data 5,207 333 - Economics of land & energy 4,850 004 - Data processing & computer science 4,496 600 - Technology 4,183 320 - Political science 4,149 700 - The arts; fine & decorative arts 4,070 000 - Computer science, information & general works 3,919 340 - Law 3,827 370 - Education 3,607 900 - History & geography 3,281 363 - Other social problems & services 3,125 530 - Physics 3,105 500 - Natural sciences & mathematics 3,096 300 - Social sciences 3,094 571 - Physiology & related subjects 3,072 820 - English & Old English literatures 2,864 519 - Probabilities & applied mathematics 2,554 612 - Human physiology 2,276 551 - Geology, hydrology & meteorology 2,144 629 - Other branches of engineering 2,138 338 - Production 2,111 515 - Analysis 2,106 304 - Factors affecting social behavior 2,024 380 - Commerce, communications & transportation 1,986 580 - Plants (Botany) 1,920 540 - Chemistry & allied sciences 1,751 570 - Life sciences; biology 1,683 003 - Systems 1,643 306 - Culture & institutions 1,557 572 - Biochemistry 1,539 615 - Pharmacology & therapeutics 1,484 140 - Specific philosophical schools 1,394 100 - Philosophy & psychology 1,385 302 - Social interaction 1,312 630 - Agriculture & related technologies 1,297 331 - Labor economics 1,247 577 - Ecology 1,241 576 - Genetics & evolution 1,228 301 - Sociology & anthropology 1,203 670 - Manufacturing 1,142 660 - Chemical engineering 1,068 332 - Financial economics 1,024 617 - Surgery & related medical specialties 1,003 512 - Algebra 966 001 - Knowledge 945 541 - Physical chemistry 900 510 - Mathematics 893 581 - Specific topics in natural history 791 520 - Astronomy & allied sciences 760 650 - Management & auxiliary services 750 579 - Microorganisms, fungi & algae 748 305 - Social groups 747 910 - Geography & travel 738 614 - Incidence & prevention of disease 725 410 - Linguistics 721 539 - Modern physics 699 613 - Personal health & safety 690 400 - Language 676 511 - General principles of mathematics 659 371 - Schools & their activities; special education 657 150 - Psychology 638 800 - Literature & rhetoric 635 624 - Civil engineering 626 170 - Ethics 592 381 - Commerce 568 516 - Geometry 548 518 - Numerical analysis 548 550 - Earth sciences 546 720 - Architecture 542 780 - Music 532 155 - Differential & developmental psychology 529 547 - Organic chemistry 529 153 - Mental processes & intelligence 512 346 - Private law 512 200 - Religion 489 523 - Specific celestial bodies & phenomena 478 664 - Food technology 475 361 - Social problems & social welfare in general 463 303 - Social processes 454 327 - International relations 438 364 - Criminology 434 418 - Standard usage & applied linguistics 425 025 - Library operations 405 384 - Communications; telecommunication 392 158 - Applied psychology 384 745 - Decorative arts 376 618 - Gynecology, obstetrics, pediatrics & geriatrics 363 628 - Sanitary & municipal engineering 358 641 - Food & drink 358 531 - Classical mechanics; solid mechanics 347 378 - Higher education 340 543 - Analytical chemistry 339 414 - Phonology & phonetics 335 see all ... less ...

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