Chicago: Edgar Allan Poe, "Preface," Eureka: A Prose Poem Original Sources, accessed March 28, 2024, http://www.originalsources.com/Document.aspx?DocID=MWTCV4AHTV3JBRD.
MLA: Poe, Edgar Allan. "Preface." Eureka: A Prose Poem, Original Sources. 28 Mar. 2024. http://www.originalsources.com/Document.aspx?DocID=MWTCV4AHTV3JBRD.
Harvard: Poe, EA, 'Preface' in Eureka: A Prose Poem. Original Sources, retrieved 28 March 2024, from http://www.originalsources.com/Document.aspx?DocID=MWTCV4AHTV3JBRD.