Developmental Disabilities in Ontario, 4th Edition

Note that all sales are final.

We print copies of DDO4 on demand due to high production costs of this comprehensive text. Therefore we are unable to sell on consignment or take returns of overstock copies.

Need an alternative format copy of the book?

Alternative format copies of the books are available at regular price to students with a registered disability via their institutions' assistive services departments.

Do not purchase a physical copy of the book if you will be purchasing an alternative format book. We no longer provide both print and alternative format books for a single purchase price.

Contact info@ddopublishing.com for assistance.