APA (7th ed.) Citation

De Quincey, T. (1950). Confessions of an English opium-eater. Heritage Press.

Chicago Style (17th ed.) Citation

De Quincey, Thomas. Confessions of an English Opium-eater. New York: Heritage Press, 1950.

MLA (9th ed.) Citation

De Quincey, Thomas. Confessions of an English Opium-eater. Heritage Press, 1950.