What's the Big Idea?
Describes the most important inventions from the Stone Age to the beginning of the twenty-first century. Organization is by historical periods.
Describes the most important inventions from the Stone Age to the beginning of the twenty-first century. Organization is by historical periods.
Sterling · ISBN 9781435150294
Panamericana · español · ISBN 9789583024627
Book House · ISBN 9781904642565
Barrons Educational Series · inglés · ISBN 9780764158988
