It's easy to cite LitCharts for use in academic papers and reports.
Munk, Olivia. "The Boy in the Striped Pajamas." <em>LitCharts.</em> LitCharts LLC, 20 Jan 2016. Web. 25 May 2017.
Munk, Olivia. "<em>The Boy in the Striped Pajamas</em>." LitCharts LLC, January 20, 2016. Retrieved May 25, 2017. http://www.litcharts.com/lit/the-boy-in-the-striped-pajamas.