It's easy to cite LitCharts for use in academic papers and reports.
MLA
Connelly, Irene. "Incidents in the Life of a Slave Girl." LitCharts. LitCharts LLC, 2 Mar 2019. Web. 3 Mar 2021.
Chicago
Connelly, Irene. "Incidents in the Life of a Slave Girl." LitCharts LLC, March 2, 2019. Retrieved March 3, 2021. https://www.litcharts.com/lit/incidents-in-the-life-of-a-slave-girl.