Classification
658 - General management
13
330 - Economics
6
331 - Labor economics
5
302 - Social interaction
4
650 - Management & auxiliary services
4
384 - Communications; telecommunication
3
741 - Drawing & drawings
3
743 - Drawing & drawings by subject
3
745 - Decorative arts
3
000 - Computer science, information & general works
2
005 - Computer programming, programs & data
2
158 - Applied psychology
2
300 - Social sciences
2
338 - Production
2
380 - Commerce, communications & transportation
2
751 - Techniques, equipment, materials & forms
2
004 - Data processing & computer science
1
011 - Bibliographies
1
153 - Mental processes & intelligence
1
155 - Differential & developmental psychology
1
368 - Insurance
1
371 - Schools & their activities; special education
1
381 - Commerce
1
580 - Plants (Botany)
1
621 - Applied physics
1
794 - Indoor games of skill
1