620 - Engineering and allied operations 4.023 Zobacz rekordy 650 - Management and auxiliary services 3.184 Zobacz rekordy 630 - Agriculture and related technologies 1.972 Zobacz rekordy 660 - Chemical engineering 832 Zobacz rekordy 610 - Medicine and health 530 Zobacz rekordy 690 - Construction of buildings 410 Zobacz rekordy 640 - Home and family management 311 Zobacz rekordy 670 - Manufacturing 215 Zobacz rekordy 680 - Manufacture of products for specific uses 119 Zobacz rekordy 600 - Technology (Applied sciences) 110 Zobacz rekordy 330 - Economics 20 Zobacz rekordy 550 - Earth sciences 13 Zobacz rekordy 380 - Commerce, communications, transportation 12 Zobacz rekordy 540 - Chemistry and allied sciences 7 Zobacz rekordy 360 - Social problems and services; associations 4 Zobacz rekordy 300 - Social sciences 3 Zobacz rekordy 570 - Biology 3 Zobacz rekordy 020 - Library and information sciences 2 Zobacz rekordy 370 - Education 2 Zobacz rekordy 910 - Geography and travel 2 Zobacz rekordy 010 - Bibliography 1 Zobacz rekordy 030 - General encyclopedic works 1 Zobacz rekordy 090 - Manuscripts, rare books 1 Zobacz rekordy 410 - Linguistics 1 Zobacz rekordy 500 - Natural sciences and mathematics 1 Zobacz rekordy 530 - Physics 1 Zobacz rekordy 590 - Animals 1 Zobacz rekordy 990 - History of other areas 1 Zobacz rekordy