Endangered earth /Author: Burgess, Jeremy.
Publisher: Vero Beach, FL : Distributed by M. Cavendish, Distributed by M. Cavendish,
Date: c1988. This title can be found in 3 Iowa libraries.
Man's mark on the land; the changing environment from the stone age to the age of smog, sewage, and tar on your feet,Author: Gregor, Arthur S.
Publisher: New York, Scribner
Date: [1974] This title can be found in 1 Iowa libraries.
Pollution: the balance of natureAuthor: Jones, Claire.
Publisher: Minneapolis, Lerner Publications Co.
Date: [1972] This title can be found in 3 Iowa libraries.
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