  Called By the Wild the Autobiography of a Conservationist (Hardcover) ISBN-13: 9780520229785 ISBN-10: 0520229789 Genres: Biographies & Memoirs, Outdoors & Nature ?   Planet in Peril Man and the Biosphere Today [Penguin education] (Paperback) ISBN-13: 9780140807158 ISBN-10: 0140807152 ? |
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