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Whales and Dolphins

Mark OakleyUnauthored

出版	Penguin Group (USA) Incorporated, 1997-03
主題	Juvenile Nonfiction / Animals / Marine Life
ISBN	07214567589780721456751
URL	http://books.google.com.hk/books?id=J7yIETFHRXwC&hl=&source=gbs_api

註釋

Explores the worlds of dolphins and whales, discussing the different types of whales, how they communicate, how they function in their environment, and the dangers they face from humans.