This is from a Little Golden Book called "Never Pat a Bear - A Book About Signs" with illustrations by Art Seiden. It was published in 1971 and the whole thing has been scanned and featured on the wonderful blog, Golden Gems.
http://goldengems.blogspot.com/2009/01/coming-tomorrownever-poke-bear.html
Like the drawings of PD Eastman, these pictures just make me smile.
Since it's "a book about signs," there's a lot of really fun hand lettering all through the book...
There are about a kajillion more illustrated treats like this at the Golden Gems blog. For example, there's this book (also illustrated by Art Seiden) called, "The Spotted Dotted Puppy."
Take a fun ride over there at:
http://goldengems.blogspot.com
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or there's also Golden Gems on Flickr at:
http://www.flickr.com/photos/talesofwhoa/sets/72157610820097436/