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