APA (7 वां संस्करण) प्रशस्ति पत्र
Richards, L. O. (1973). 69 ways to start a study group and keep it growing. Zondervan Pub. House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Richards, Lawrence O. 69 Ways to Start a Study Group and Keep It Growing. Grand Rapids: Zondervan Pub. House, 1973.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Richards, Lawrence O. 69 Ways to Start a Study Group and Keep It Growing. Zondervan Pub. House, 1973.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.