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<xml><bibliography><APA>Alan Marshall. (2015) Ecotopia 2121: Car-freeCities of the 22nd Century. &lt;i&gt;Environment and Natural Resources Journal&lt;/i&gt;, &lt;i&gt;13&lt;/i&gt;(1), 28-38.</APA><Chicago>Alan Marshall. "Ecotopia 2121: Car-freeCities of the 22nd Century". Environment and Natural Resources Journal  13 (2015):28-38.</Chicago><MLA>Alan Marshall. Ecotopia 2121: Car-freeCities of the 22nd Century. Faculty of Environment and Resourdce Studies,Mahidol University:ม.ป.ท. 2015.</MLA></bibliography></xml>
