Classification
334 - Cooperatives
1
338 - Production
1
363 - Other social problems & services
2
581 - Specific topics in natural history
1
612 - Human physiology
2
613 - Personal health & safety
2
615 - Pharmacology & therapeutics
10
616 - Diseases
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
631 - Techniques, equipment & materials
1
632 - Plant injuries, diseases & pests
2
664 - Food technology
4
668 - Technology of other organic products
1