570 - Biology 42,262 查看记录 510 - Mathematics 29,078 查看记录 540 - Chemistry and allied sciences 22,052 查看记录 530 - Physics 20,555 查看记录 590 - Animals 11,517 查看记录 580 - Plants 10,833 查看记录 550 - Earth sciences 10,155 查看记录 500 - Natural sciences and mathematics 4,782 查看记录 520 - Astronomy and allied sciences 2,889 查看记录 560 - Paleontology 533 查看记录 000 - Computer science, information, general works 6 查看记录 620 - Engineering and allied operations 4 查看记录 630 - Agriculture and related technologies 4 查看记录 140 - Specific philosophical schools 2 查看记录 050 - General serial publications 1 查看记录 330 - Economics 1 查看记录 370 - Education 1 查看记录 400 - Language 1 查看记录 610 - Medicine and health 1 查看记录 640 - Home and family management 1 查看记录 650 - Management and auxiliary services 1 查看记录