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The Mystery of the Everglades

Ada GrahamFrank Graham

出版	Random House, 1972
主題	Juvenile Nonfiction / Science & Nature / GeneralScience / General
ISBN	03948231849780394823188
URL	http://books.google.com.hk/books?id=O9IWAQAAMAAJ&hl=&source=gbs_api

註釋

An eleven-year-old visitor to the Everglades observes the threat to its ecological balance and what can happen if this area is not protected.