{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Preserving Nature in the National Parks: A History; With a New Preface and Epilogue","author_name":"Richard West Sellars","thumbnail_url":"https://www.ebooknetworking.net/books/030/015/big0300154143.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0300154143.html\">Preserving Nature in the National Parks: A History; With a New Preface and Epilogue</a>","width":400,"height":300}