It's easy to cite LitCharts for use in academic papers and reports.
Arn, Jackson. "All the Light We Cannot See." <em>LitCharts.</em> LitCharts LLC, 12 Mar 2016. Web. 20 Jan 2017.
Arn, Jackson. "<em>All the Light We Cannot See</em>." LitCharts LLC, March 12, 2016. Retrieved January 20, 2017. http://www.litcharts.com/lit/all-the-light-we-cannot-see.