Classification
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342 - Constitutional & administrative law
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343 - Military, tax, trade & industrial law
1
344 - Labor, social, education & cultural law
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360 - Social problems & services; associations
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361 - Social problems & social welfare in general
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362 - Social welfare problems & services
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364 - Criminology
1
374 - Adult education
1
380 - Commerce, communications & transportation
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387 - Water, air & space transportation
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418 - Standard usage & applied linguistics
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480 - Hellenic languages; classical Greek
1
507 - Education, research & related topics
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510 - Mathematics
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512 - Algebra
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535 - Light & infrared & ultraviolet phenomena
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571 - Physiology & related subjects
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572 - Biochemistry
1
576 - Genetics & evolution
1
579 - Microorganisms, fungi & algae
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590 - Animals (Zoology)
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612 - Human physiology
1
617 - Surgery & related medical specialties
1
621 - Applied physics
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624 - Civil engineering
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631 - Techniques, equipment & materials
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641 - Food & drink
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660 - Chemical engineering
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691 - Building materials
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720 - Architecture
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741 - Drawing & drawings
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746 - Textile arts
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751 - Techniques, equipment, materials & forms
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770 - Photography, photographs & computer art
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792 - Stage presentations
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800 - Literature & rhetoric
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808 - Rhetoric & collections of literature
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810 - American literature in English
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909 - World history
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930 - History of ancient world to ca. 499
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