Happiest Baby
year of publication
ISBN
author(s)
title
2004
978-0-9721795-1-5
The Happiest Baby on the Block Video [VHS]
2003
978-0-9721795-2-2
The Happiest Baby on the Block DVD
2004
978-0-9721795-5-3
Harvey Karp
The Happiest Toddler on the Block: Volume 1