Classification
005 - Computer programming, programs & data
125
004 - Data processing & computer science
107
006 - Special computer methods
105
621 - Applied physics
25
570 - Life sciences; biology
12
025 - Library operations
9
003 - Systems
7
323 - Civil & political rights
4
502 - Miscellany
3
910 - Geography & travel
2
001 - Knowledge
1
343 - Military, tax, trade & industrial law
1
371 - Schools & their activities; special education
1
374 - Adult education
1
381 - Commerce
1
500 - Natural sciences & mathematics
1
518 - Numerical analysis
1
519 - Probabilities & applied mathematics
1
520 - Astronomy & allied sciences
1
629 - Other branches of engineering
1
650 - Management & auxiliary services
1