Subject
- Subterranean clover2
- Carbon compounds1
- Computer animation1
- DDT (Insecticide) -- Synthesis1
- Herbicides1
- Human locomotion -- Computer simulation1
- Knotts, L. William1
- Motion -- Computer simulation1
- Organic compounds -- Synthesis1
- Pea aphid1
- Peas -- Diseases and pests1
- Peppermint -- Diseases and pests1
- Plant parasites1
- Red clover1
- Rhizobium leguminosarum1
- Seeds1