Author: John Woodward; Welsh Adaptation: Bethan Mair.

An amazing, new Welsh Encyclopedia with lots of Earth-related topics, hundreds of pictures, thousands of words and squillions of amazing things to discover and explore. So Find it. See it. Know it.

Awdur: John Woodward; Addasiad Cymraeg: Bethan Mair.

Gwyddoniadur darluniadol llawn lliw yn cynnwys llu o bytiau rhyfeddol a diddorol am bynciau yn ymwneud a'r Ddaear. Dewch i ddarganfod, i weld ac i ddeall.