APA
Conrad J., . (2002). Heart of darkness. New York: W. W. Norton & Company.
Chicago
Conrad Joseph, . 2002. Heart of darkness. New York: W. W. Norton & Company.
Harvard
Conrad J., . (2002). Heart of darkness. New York: W. W. Norton & Company.
MLA
Conrad Joseph, . Heart of darkness. New York: W. W. Norton & Company. 2002.