Chicago: Edgar Allan Poe, "Preface," Eureka: A Prose Poem Original Sources, accessed April 3, 2025, http://originalsources.com/Document.aspx?DocID=MWTCV4AHTV3JBRD.
MLA: Poe, Edgar Allan. "Preface." Eureka: A Prose Poem, Original Sources. 3 Apr. 2025. http://originalsources.com/Document.aspx?DocID=MWTCV4AHTV3JBRD.
Harvard: Poe, EA, 'Preface' in Eureka: A Prose Poem. Original Sources, retrieved 3 April 2025, from http://originalsources.com/Document.aspx?DocID=MWTCV4AHTV3JBRD.