Schrefer, E. (2021). The darkness outside us (First edition.). Katherine Tegen Books, HarperCollins Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSchrefer, Eliot. The Darkness Outside Us. First edition. New York, NY: Katherine Tegen Books, HarperCollins Publishers, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSchrefer, Eliot. The Darkness Outside Us. First edition. Katherine Tegen Books, HarperCollins Publishers, 2021.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.