This is a super charming little book. I actually thought it was from the 70s because the style is a little more crisp and angular than the more rounded shapes in my other vintage kid's books—but it was produced in 1963. I love the little girls with their kerchiefs!
"Bow Wow! Meow! A Book of first Sounds" By Melanie Bellah Illustrations by Trina Schart 1963