APA (7 वां संस्करण) प्रशस्ति पत्र
Treadway, D. C. (1989). Before it's too late: Working with substance abuse in the family. W.W. Norton.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Treadway, David C. Before It's Too Late: Working with Substance Abuse in the Family. New York: W.W. Norton, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Treadway, David C. Before It's Too Late: Working with Substance Abuse in the Family. W.W. Norton, 1989.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.