Classification
621 - Applied physics
14
745 - Decorative arts
9
005 - Computer programming, programs & data
8
000 - Computer science, information & general works
7
620 - Engineering & allied operations
7
004 - Data processing & computer science
4
629 - Other branches of engineering
4
500 - Natural sciences & mathematics
3
794 - Indoor games of skill
3
600 - Technology
1