Classification
330 - Economics
000 - Computer science, information & general works
3
658 - General management
3
302 - Social interaction
2
580 - Plants (Botany)
2
006 - Special computer methods
1
300 - Social sciences
1
320 - Political science
1
331 - Labor economics
1
333 - Economics of land & energy
1
338 - Production
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
381 - Commerce
1
576 - Genetics & evolution
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
650 - Management & auxiliary services
1