Classification
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146 - Naturalism & related systems
3
153 - Mental processes & intelligence
3
301 - Sociology & anthropology
3
304 - Factors affecting social behavior
3
380 - Commerce, communications & transportation
3
495 - Languages of East & Southeast Asia
3
500 - Natural sciences & mathematics
3
510 - Mathematics
3
511 - General principles of mathematics
3
570 - Life sciences; biology
3
880 - Hellenic literatures; classical Greek
3
126 - The self
2
150 - Psychology
2
155 - Differential & developmental psychology
2
184 - Platonic philosophy
2
193 - Philosophy of Germany & Austria
2
220 - Bible
2
342 - Constitutional & administrative law
2
363 - Other social problems & services
2
372 - Elementary education
2
409 - Geographic & persons treatment
2
411 - Writing systems
2
412 - Etymology
2
491 - East Indo-European & Celtic languages
2
612 - Human physiology
2
616 - Diseases
2
618 - Gynecology, obstetrics, pediatrics & geriatrics
2
780 - Music
2
940 - History of Europe
2
030 - General encyclopedic works
1
070 - News media, journalism & publishing
1
140 - Specific philosophical schools
1
144 - Humanism & related systems
1
177 - Ethics of social relations
1
179 - Other ethical norms
1
181 - Eastern philosophy
1
210 - Philosophy & theory of religion
1
211 - Concepts of God
1
230 - Christianity & Christian theology
1
261 - Social theology
1
297 - Islam, Babism & Bahai Faith
1
303 - Social processes
1
323 - Civil & political rights
1
331 - Labor economics
1
332 - Financial economics
1
344 - Labor, social, education & cultural law
1
398 - Folklore
1
408 - Kinds of persons treatment
1
440 - Romance languages; French
1
463 - Spanish dictionaries
1
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