Chicago: Edgar Rice Burroughs, "Dedication," A Princess of Mars in Edgar Rice Burroughs, A Princess of Mars Original Sources, accessed July 3, 2022, http://originalsources.com/Document.aspx?DocID=DXGFPQEPKX12X5M.
MLA: Burroughs, Edgar Rice. "Dedication." A Princess of Mars, in Burroughs, Edgar Rice. A Princess of Mars, Original Sources. 3 Jul. 2022. http://originalsources.com/Document.aspx?DocID=DXGFPQEPKX12X5M.
Harvard: Burroughs, ER, 'Dedication' in A Princess of Mars. cited in Burroughs, ER, A Princess of Mars. Original Sources, retrieved 3 July 2022, from http://originalsources.com/Document.aspx?DocID=DXGFPQEPKX12X5M.