APA (7 वां संस्करण) प्रशस्ति पत्र
Haddorff, D. W. (2010). Christian ethics as witness: Barth's ethics for a world at risk. James Clarke & Co.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Haddorff, David W. Christian Ethics as Witness: Barth's Ethics for a World at Risk. Cambridge, England: James Clarke & Co, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Haddorff, David W. Christian Ethics as Witness: Barth's Ethics for a World at Risk. James Clarke & Co, 2010.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.