It's easy to cite LitCharts for use in academic papers and reports.
Hoyt-Disick, Gabrielle. "The Immortal Life of Henrietta Lacks." <em>LitCharts.</em> LitCharts LLC, 29 Jun 2016. Web. 17 Jan 2017.
Hoyt-Disick, Gabrielle. "<em>The Immortal Life of Henrietta Lacks</em>." LitCharts LLC, June 29, 2016. Retrieved January 17, 2017. http://www.litcharts.com/lit/the-immortal-life-of-henrietta-lacks.