TY  - BOOK
AU  - Showers,Paul
AU  - Low,Joseph
TI  - Hear your heart
T2  - Let's read-and-find-out science books
SN  - 0690373783
AV  - PZ10.S637 He
U1  - 612 
PY  - 1968///
CY  - New York
PB  - Crowell
KW  - Heart
KW  - Juvenile literature
KW  - Cardiovascular system
N2  - A simple explanation of the structure of the heart and how it works
UR  - http://www.archive.org/details/hearyourheart00show
UR  - http://www.openlibrary.org/books/OL5604064M
ER  -