330 - Economics 83,517 Ver registros 300 - Social sciences 47,200 Ver registros 320 - Political science (Politics and government) 26,820 Ver registros 340 - Law 21,139 Ver registros 370 - Education 19,628 Ver registros 360 - Social problems and services; associations 12,461 Ver registros 380 - Commerce, communications, transportation 6,189 Ver registros 350 - Public administration and military science 5,302 Ver registros 390 - Customs, etiquette, folklore 4,873 Ver registros 310 - Collections of general statistics 2,012 Ver registros 070 - Documentary, educational, news media; journalism 30 Ver registros 950 - History of Asia 10 Ver registros 650 - Management and auxiliary services 4 Ver registros 930 - History of ancient world to ca. 499 3 Ver registros 130 - Parapsychology and occultism 2 Ver registros 290 - Other religions 2 Ver registros 620 - Engineering and allied operations 2 Ver registros 800 - Literature (Belles-lettres) and rhetoric 2 Ver registros 850 - Italian, Romanian & related literatures 2 Ver registros 000 - Computer science, information, general works 1 Ver registros 020 - Library and information sciences 1 Ver registros 030 - General encyclopedic works 1 Ver registros 190 - Modern western philosophy 1 Ver registros 400 - Language 1 Ver registros 510 - Mathematics 1 Ver registros 570 - Biology 1 Ver registros 660 - Chemical engineering 1 Ver registros 780 - Music 1 Ver registros 790 - Recreational and performing arts 1 Ver registros 810 - American literature in English 1 Ver registros 830 - Literatures of Germanic languages 1 Ver registros 910 - Geography and travel 1 Ver registros 960 - History of Africa 1 Ver registros