Cambridge University Press Cambridge Factbooks 6 Why Does My Heart Pump?
Publikace: A series of twenty non-fiction science readers which engages children in the world around them. Is the tongue a muscle? How do our bones move? Why do we sneeze? You can find the answers to these and other questions about how the body works in Why Doe - Helen Bethune. Anotace: Zjednodušená četba pro děti ...a dál?