Classification
000 - Computer science, information & general works
2
001 - Knowledge
1
011 - Bibliographies
1
100 - Philosophy & psychology
7
150 - Psychology
7
155 - Differential & developmental psychology
1
158 - Applied psychology
3
170 - Ethics
3
302 - Social interaction
2
320 - Political science
1
330 - Economics
7
331 - Labor economics
9
338 - Production
3
340 - Law
1
361 - Social problems & social welfare in general
1
362 - Social welfare problems & services
21
363 - Other social problems & services
3
370 - Education
2
380 - Commerce, communications & transportation
5
384 - Communications; telecommunication
3
500 - Natural sciences & mathematics
8
510 - Mathematics
3
519 - Probabilities & applied mathematics
5
551 - Geology, hydrology & meteorology
1
571 - Physiology & related subjects
1,401
576 - Genetics & evolution
4
579 - Microorganisms, fungi & algae
214
580 - Plants (Botany)
1
600 - Technology
2
610 - Medicine & health
46
611 - Human anatomy, cytology & histology
1
612 - Human physiology
5
614 - Incidence & prevention of disease
1
615 - Pharmacology & therapeutics
2
616 - Diseases
617 - Surgery & related medical specialties
35
620 - Engineering & allied operations
8
650 - Management & auxiliary services
1
658 - General management
3
700 - The arts; fine & decorative arts
5
745 - Decorative arts
1
800 - Literature & rhetoric
1
900 - History & geography
4