650 - Management and auxiliary services 65,030 Bekijk Records 630 - Agriculture and related technologies 46,745 Bekijk Records 610 - Medicine and health 27,487 Bekijk Records 620 - Engineering and allied operations 26,096 Bekijk Records 660 - Chemical engineering 10,136 Bekijk Records 640 - Home and family management 3,437 Bekijk Records 670 - Manufacturing 2,929 Bekijk Records 680 - Manufacture of products for specific uses 1,313 Bekijk Records 600 - Technology (Applied sciences) 750 Bekijk Records 690 - Construction of buildings 558 Bekijk Records 330 - Economics 5 Bekijk Records 570 - Biology 5 Bekijk Records 000 - Computer science, information, general works 3 Bekijk Records 070 - Documentary, educational, news media; journalism 2 Bekijk Records 150 - Psychology 2 Bekijk Records 530 - Physics 2 Bekijk Records 020 - Library and information sciences 1 Bekijk Records 050 - General serial publications 1 Bekijk Records 340 - Law 1 Bekijk Records 380 - Commerce, communications, transportation 1 Bekijk Records 500 - Natural sciences and mathematics 1 Bekijk Records 510 - Mathematics 1 Bekijk Records 550 - Earth sciences 1 Bekijk Records 580 - Plants 1 Bekijk Records 770 - Photography, computer art, cinematography 1 Bekijk Records