It's easy to cite LitCharts for use in academic papers and reports.
Arn, Jackson. "The Devil in the White City." <em>LitCharts.</em> LitCharts LLC, 1 Jul 2015. Web. 18 Jan 2017.
Arn, Jackson. "<em>The Devil in the White City</em>." LitCharts LLC, July 1, 2015. Retrieved January 18, 2017. http://www.litcharts.com/lit/the-devil-in-the-white-city.