Cyfres Lobsgows: Dyfeisiau Difyr

Description

One of a series of 8 themed books for 7-11 year olds which present s facts in a way that will prompt a smile and create eagerness to learn more. Dyfeisiau Difyr looks at all sorts of devices that have transformed our lives, from the measels vaccine to the telephone, the fridge and freezer, and book printing machines.