It's easy to cite LitCharts for use in academic papers and reports.
Arn, Jackson. "A History of the World in Six Glasses." <em>LitCharts.</em> LitCharts LLC, 20 Jan 2016. Web. 23 Jan 2017.
Arn, Jackson. "<em>A History of the World in Six Glasses</em>." LitCharts LLC, January 20, 2016. Retrieved January 23, 2017. http://www.litcharts.com/lit/a-history-of-the-world-in-six-glasses.