These Are the Great Lakes

by Phillip H. Ault and Phil Ault

Traces the history of the Great Lakes and their environs, examines man's responsibility for upsetting and correcting the ecological balance in the lakes, and discusses their present pollution crisis. This description may be from another edition of this product.

• Format: Hardcover
• Language: English
• ISBN: 0396066070
• ISBN13: 9780396066071
• Release Date: January 1972
• Publisher: Dodd Mead
• Length: 174 Pages
• Age Range: 10 years and up
• Grade Range: Grade 5 and higher