Newton, R. W., Puri, S., & Marder, L. (2015). Down syndrome: Current perspectives. Mac Keith Press.

Newton, Richard W., Shiela Puri, and Liz Marder. Down Syndrome: Current Perspectives. London, [England]: Mac Keith Press, 2015.

Newton, Richard W., et al. Down Syndrome: Current Perspectives. Mac Keith Press, 2015.