Classification
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306 - Culture & institutions
1
363 - Other social problems & services
1
510 - Mathematics
1
515 - Analysis
1
531 - Classical mechanics; solid mechanics
1
536 - Heat
1
539 - Modern physics
1
592 - Invertebrates
1
595 - Arthropods
1
596 - Chordates
1
634 - Orchards, fruits & forestry
1
641 - Food & drink
1
664 - Food technology
1