Chicago: Edgar Rice Burroughs, "Contents Chapter," Tarzan and the Jewels of Opar Original Sources, accessed July 3, 2022, http://originalsources.com/Document.aspx?DocID=H9K2HFP6TG8U7TN.
MLA: Burroughs, Edgar Rice. "Contents Chapter." Tarzan and the Jewels of Opar, Original Sources. 3 Jul. 2022. http://originalsources.com/Document.aspx?DocID=H9K2HFP6TG8U7TN.
Harvard: Burroughs, ER, 'Contents Chapter' in Tarzan and the Jewels of Opar. Original Sources, retrieved 3 July 2022, from http://originalsources.com/Document.aspx?DocID=H9K2HFP6TG8U7TN.