Safety Film Carrier Carrier No: 19459-3-1 Item Id: 92394 Rack No: 3667 Notes: Description: "Explains that man's increasing need for water has resulted in the building of aqueducts, reservoirs, and dams. Explains that man may assure himself of an adequate water supply by preserving nature's resources, by working with engineers, conservationists, and scientists, and by taking proper care of forests, land, and rivers that make up the water-sheds." -WorldCat | Conditions x2
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