TY  - BOOK
AU  - Bailey,Jacqui
TI  - What happens when your heart beats?
T2  - How your body works
SN  - 9781404244306 (library binding)
AV  - QP103 .B353 2009
U1  - 612.1 H847 2009 
PY  - 2009///.
CY  - New York
PB  - PowerKids Press
KW  - Cardiovascular system
KW  - Juvenile literature
KW  -  Circulatory system.
KW  - Cardiovascular system.
N1  - Includes index; Why does your heart beat? -- What is blood for? -- How big is your heart? -- Finding your heart -- Made of muscle -- Heart at work -- Around and around -- Back again -- Blood battles -- Giving blood --Healthy heart -- Body words
UR  - http://www.loc.gov/catdir/toc/ecip082/2007041871.html
ER  -