Cambridge University Press Cambridge Factbooks 5 Why Do Diamonds Glitter?
Publikace: A series of twenty non-fiction science readers which engages children in the world around them. Why do we need forests? Is plastic harmful? Where are gold and gems mined? You can find the answers to these and other questions about the world's resourc - Helen Bethune. Anotace: Zjednodušená četba pro děti ...a dál?