Classification
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612 - Human physiology
16
302 - Social interaction
15
576 - Genetics & evolution
15
150 - Psychology
14
371 - Schools & their activities; special education
14
280 - Christian denominations & sects
13
361 - Social problems & social welfare in general
13
550 - Earth sciences
13
670 - Manufacturing
13
337 - International economics
12
572 - Biochemistry
12
641 - Food & drink
12
305 - Social groups
11
339 - Macroeconomics & related topics
11
618 - Gynecology, obstetrics, pediatrics & geriatrics
11
634 - Orchards, fruits & forestry
11
020 - Library & information sciences
10
515 - Analysis
10
539 - Modern physics
10
025 - Library operations
9
240 - Christian moral & devotional theology
9
303 - Social processes
9
624 - Civil engineering
9
631 - Techniques, equipment & materials
9
700 - The arts; fine & decorative arts
9
930 - History of ancient world to ca. 499
9
000 - Computer science, information & general works
8
140 - Specific philosophical schools
8
360 - Social problems & services; associations
8
364 - Criminology
8
570 - Life sciences; biology
8
590 - Animals (Zoology)
8
629 - Other branches of engineering
8
155 - Differential & developmental psychology
7
200 - Religion
7
307 - Communities
7
324 - The political process
7
378 - Higher education
7
547 - Organic chemistry
7
344 - Labor, social, education & cultural law
6
381 - Commerce
6
384 - Communications; telecommunication
6
501 - Philosophy & theory
6
523 - Specific celestial bodies & phenomena
6
628 - Sanitary & municipal engineering
6
800 - Literature & rhetoric
6
809 - History, description & criticism
6
336 - Public finance
5
342 - Constitutional & administrative law
5
343 - Military, tax, trade & industrial law
5
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