Classification
330 - Economics
200
700 - The arts; fine & decorative arts
198
320 - Political science
196
600 - Technology
84
630 - Agriculture & related technologies
29
900 - History & geography
17
300 - Social sciences
6
340 - Law
5
331 - Labor economics
3
620 - Engineering & allied operations
3
640 - Home & family management
3
658 - General management
3
800 - Literature & rhetoric
3
030 - General encyclopedic works
2
160 - Logic
2
338 - Production
2
370 - Education
2
500 - Natural sciences & mathematics
2
609 - Historical, geographic & persons treatment
2
680 - Manufacture for specific uses
2
730 - Plastic arts; sculpture
2
153 - Mental processes & intelligence
1
170 - Ethics
1
360 - Social problems & services; associations
1
372 - Elementary education
1
380 - Commerce, communications & transportation
1
384 - Communications; telecommunication
1
603 - Dictionaries & encyclopedias
1
621 - Applied physics
1
629 - Other branches of engineering
1
690 - Buildings
1
740 - Drawing & decorative arts
1
745 - Decorative arts
1