Classification
004 - Data processing & computer science
443
005 - Computer programming, programs & data
61
006 - Special computer methods
53
511 - General principles of mathematics
8
510 - Mathematics
5
620 - Engineering & allied operations
4
512 - Algebra
3
518 - Numerical analysis
3
003 - Systems
2
025 - Library operations
1
150 - Psychology
1
153 - Mental processes & intelligence
1
330 - Economics
1
500 - Natural sciences & mathematics
1
507 - Education, research & related topics
1
519 - Probabilities & applied mathematics
1
570 - Life sciences; biology
1
576 - Genetics & evolution
1