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(0)Valerie Rapp
Author
Series
Publisher
Lerner Publications Co
Pub. Date
[2003]
Accelerated Reader
IL: MG - BL: 7.4 - AR Pts: 2
Language
English
Description
Using the Columbian River Basin as an example, explores the ecosystems of rivers of all sizes in mountains and valleys, and discusses the impact of human interaction.
