Classification
502 - Miscellany
52
621 - Applied physics
15
658 - General management
13
620 - Engineering & allied operations
12
650 - Management & auxiliary services
12
530 - Physics
4
370 - Education
3
690 - Buildings
3
004 - Data processing & computer science
2
338 - Production
2
507 - Education, research & related topics
2
540 - Chemistry & allied sciences
2
600 - Technology
2
670 - Manufacturing
2
005 - Computer programming, programs & data
1
120 - Epistemology, causation & humankind
1
150 - Psychology
1
155 - Differential & developmental psychology
1
302 - Social interaction
1
305 - Social groups
1
346 - Private law
1
371 - Schools & their activities; special education
1
418 - Standard usage & applied linguistics
1
520 - Astronomy & allied sciences
1
570 - Life sciences; biology
1
610 - Medicine & health
1
624 - Civil engineering
1
629 - Other branches of engineering
1