4th Edition Textbook May 1, 2017

Developmental Disabilities in Ontario – 4th edition will be published Summer 2020

3rd Edition – ISBN: 978-0-9731573-1-4 is now out of print

Some 3rd ed. print copies are still available; all sales are final. Contact the OADD office oadd@oadd.org or 416-429-3720 for more information

If you have any questions please contact the OADD office at oadd@oadd.org or 416-429-3720.