Classification
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323 - Civil & political rights
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332 - Financial economics
1
351 - Public administration
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360 - Social problems & services; associations
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370 - Education
1
398 - Folklore
1
400 - Language
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491 - East Indo-European & Celtic languages
1
520 - Astronomy & allied sciences
1
540 - Chemistry & allied sciences
1
570 - Life sciences; biology
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571 - Physiology & related subjects
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576 - Genetics & evolution
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577 - Ecology
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614 - Incidence & prevention of disease
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630 - Agriculture & related technologies
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636 - Animal husbandry
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930 - History of ancient world to ca. 499
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