Classification
000 - Computer science, information & general works
120
001 - Knowledge
58
002 - The book
1
003 - Systems
83
004 - Data processing & computer science
794
005 - Computer programming, programs & data
677
006 - Special computer methods
477
010 - Bibliography
8
016 - Bibliographies of works on specific subjects
8
020 - Library & information sciences
9
025 - Library operations
26
026 - Libraries for specific subjects
1
027 - General libraries
4
028 - Reading & use of other information media
1
030 - General encyclopedic works
4
037 - Encyclopedias in Slavic languages
1
050 - General serial publications
2
052 - Serials in English
1
070 - News media, journalism & publishing
12
073 - Newspapers in central Europe; in Germany
2
080 - General collections
2
091 - Manuscripts
1
100 - Philosophy & psychology
132
109 - Historical & collected persons treatment
9
110 - Metaphysics
1
111 - Ontology
2
120 - Epistemology, causation & humankind
11
121 - Epistemology
2
125 - [Unassigned]
1
128 - Humankind
2
130 - Parapsychology & occultism
2
133 - Specific topics in parapsychology & occultism
3
140 - Specific philosophical schools
81
142 - Critical philosophy
11
149 - Other philosophical systems
2
150 - Psychology
23
152 - Perception, movement, emotions & drives
3
153 - Mental processes & intelligence
12
155 - Differential & developmental psychology
19
158 - Applied psychology
13
160 - Logic
8
170 - Ethics
48
172 - Political ethics
1
174 - Occupational ethics
19
179 - Other ethical norms
1
180 - Ancient, medieval & eastern philosophy
2
181 - Eastern philosophy
2
186 - Skeptic & Neoplatonic philosophies
1
189 - Medieval western philosophy
1
190 - Modern western philosophy
5
more ...