"September 2013."
"ESRI, Trinity College Dublin, An Roinn Leanaí agus Gnóthaí Óige, Department of Children and Youth Affairs."
"Infant cohort"--Cover.
"Executive summary"--Cover.
Development from birth to three years by James Williams. ISBN 9781406427899. Published by Stationery Office in 2013. Publication and catalogue information, links to buy online and reader comments.