APA (7 वां संस्करण) प्रशस्ति पत्र

Spencer, C., & Tasker, J. (1991). Which of us two?: The story of a love affair / Colin Spencer. Penguin.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Spencer, Colin, और John Tasker. Which of Us Two?: The Story of a Love Affair / Colin Spencer. London [u.a.]: Penguin, 1991.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Spencer, Colin, और John Tasker. Which of Us Two?: The Story of a Love Affair / Colin Spencer. Penguin, 1991.