APA aipamena

Conrad, J., Hampson, R., & Knowles, O. (2007). Heart of darkness: With, the congo diary. Penguin Books.

Chicago Style aipamena

Conrad, Joseph, Robert Hampson, and Owen Knowles. Heart of Darkness: With, the Congo Diary. London: Penguin Books, 2007.

MLA aipamena

Conrad, Joseph, et al. Heart of Darkness: With, the Congo Diary. Penguin Books, 2007.