APA (7 वां संस्करण) प्रशस्ति पत्र

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

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

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

एमएलए (8वां संस्करण) प्रशस्ति पत्र

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