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Subject
- Insecticides5
- Agricultural chemicals4
- DDT (Insecticide)4
- E.I. du Pont de Nemours & Company4
- Nuclear energy4
- Pests--Control4
- Herbicides3
- Insect pests3
- Weeds--Control3
- Advertising--Paint2
- Chemical industry2
- Comic books, strips, etc.2
- Laboratory manuals2
- Linseed oil2
- Nuclear energy--Social aspects2
- Oilseeds2
- Paint industry and trade2
- Paint materials2
- Pesticides2
- Rubber, Artificial2