Classification
001 - Knowledge
7
002 - The book
3
003 - Systems
8
004 - Data processing & computer science
6
005 - Computer programming, programs & data
4
006 - Special computer methods
5
016 - Bibliographies of works on specific subjects
1
020 - Library & information sciences
6
022 - Administration of physical plant
1
023 - Personnel management
1
025 - Library operations
3
027 - General libraries
1
030 - General encyclopedic works
1
041 - [Unassigned]
1
051 - Serials in American English
1
069 - Museum science
3
070 - News media, journalism & publishing
2
091 - Manuscripts
2
094 - Printed books
1
100 - Philosophy & psychology
7
111 - Ontology
6
113 - Cosmology
2
121 - Epistemology
7
122 - Causation
1
128 - Humankind
4
133 - Specific topics in parapsychology & occultism
3
135 - Dreams & mysteries
1
140 - Specific philosophical schools
1
142 - Critical philosophy
1
144 - Humanism & related systems
1
145 - Sensationalism
1
146 - Naturalism & related systems
2
147 - Pantheism & related systems
1
150 - Psychology
6
152 - Perception, movement, emotions & drives
4
153 - Mental processes & intelligence
3
155 - Differential & developmental psychology
5
156 - Comparative psychology
1
158 - Applied psychology
2
160 - Logic
1
164 - [Unassigned]
2
170 - Ethics
3
171 - Ethical systems
2
174 - Occupational ethics
8
176 - Ethics of sex & reproduction
1
177 - Ethics of social relations
2
179 - Other ethical norms
2
181 - Eastern philosophy
3
186 - Skeptic & Neoplatonic philosophies
1
190 - Modern western philosophy
2
more ...