Classification
004 - Data processing & computer science
3
005 - Computer programming, programs & data
3
050 - General serial publications
3
006 - Special computer methods
2
551 - Geology, hydrology & meteorology
2
577 - Ecology
2
616 - Diseases
2
180 - Ancient, medieval & eastern philosophy
1
320 - Political science
1
331 - Labor economics
1
510 - Mathematics
1
531 - Classical mechanics; solid mechanics
1
534 - Sound & related vibrations
1
571 - Physiology & related subjects
1
572 - Biochemistry
1
624 - Civil engineering
1
930 - History of ancient world to ca. 499
1