A. Ross, D., G. Smith, P., & H. Morrow, R. (2015). Chapter 2 Types of intervention and their development. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रA. Ross, David, Peter G. Smith, और Richard H. Morrow. Chapter 2 Types of Intervention and Their Development. Oxford University Press, 2015.
एमएलए (9वां संस्करण) प्रशस्ति पत्रA. Ross, David, et al. Chapter 2 Types of Intervention and Their Development. Oxford University Press, 2015.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.