Undetermined language
Published Nov. 7, 1963 by Collins and Harvill.
Hop on pop.
by Dr. Seuss
**LibraryThing: Pairs of rhyming words are introduced and used in simple sentences, such as "Day. Play. We play all day. Night. Fight. We fight all night."
**LibraryThing: Pairs of rhyming words are introduced and used in simple sentences, such as "Day. Play. We play all day. Night. Fight. We fight all night."
