Classification
306 - Culture & institutions
4
930 - History of ancient world to ca. 499
4
305 - Social groups
3
620 - Engineering & allied operations
3
700 - The arts; fine & decorative arts
3
363 - Other social problems & services
2
004 - Data processing & computer science
1
005 - Computer programming, programs & data
1
100 - Philosophy & psychology
1
230 - Christianity & Christian theology
1
297 - Islam, Babism & Bahai Faith
1
302 - Social interaction
1
307 - Communities
1
320 - Political science
1
340 - Law
1
510 - Mathematics
1
519 - Probabilities & applied mathematics
1
520 - Astronomy & allied sciences
1
612 - Human physiology
1
616 - Diseases
1
621 - Applied physics
1
629 - Other branches of engineering
1
741 - Drawing & drawings
1
809 - History, description & criticism
1
907 - Education, research & related topics
1
951 - China & adjacent areas
1