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            "title": "Aldo Leopold and an Ecological Conscience",
            "subtitle": null,
            "author": "Richard L. Knight; Susanne Reidel",
            "isbn": "9780195149449",
            "publisher": "Oxford University Press",
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        {
            "title": "Environmental Performance Measurement",
            "subtitle": "The Global Report 2001-2002",
            "author": "World Economic Forum; Daniel Esty; Peter K. Cornelius",
            "isbn": "9780195152555",
            "publisher": "Oxford University Press",
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        {
            "title": "Called by the Wild",
            "subtitle": "The Autobiography  of a Conservationist",
            "author": "Raymond Dasmann; Paul R. Ehrlich",
            "isbn": "9780520229785",
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            "link_to_publisher": "https:\/\/www.ucpress.edu\/books\/called-by-the-wild\/hardcover"
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            "title": "Primate Encounters",
            "subtitle": "Models of Science, Gender, and Society",
            "author": "Strum, Shirley C.",
            "isbn": "9780226777559",
            "publisher": "University of Chicago Press",
            "link_to_publisher": "https:\/\/press.uchicago.edu\/ucp\/books\/book\/chicago\/P\/bo3641086.html"
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