Classification
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658 - General management
2
670 - Manufacturing
2
910 - Geography & travel
2
111 - Ontology
1
320 - Political science
1
332 - Financial economics
1
380 - Commerce, communications & transportation
1
384 - Communications; telecommunication
1
509 - Historical, geographic & persons treatment
1
520 - Astronomy & allied sciences
1
538 - Magnetism
1
540 - Chemistry & allied sciences
1
571 - Physiology & related subjects
1
580 - Plants (Botany)
1
616 - Diseases
1
628 - Sanitary & municipal engineering
1
690 - Buildings
1
745 - Decorative arts
1