TY  - BOOK
AU  - Clark,Claire
TI  - How long is a day?
T2  - Pebble plus. The calendar
SN  - 9781429675918 (lib. bdg.)
AV  - QB209.5 .C583 2012
U1  - J 529 CLA 
PY  - 2012///
CY  - Mankato, Minn.
PB  - Capstone Press
KW  - Day
KW  - Juvenile literature
KW  - Night
KW  - Earth
KW  - Rotation
KW  - Time measurements
N1  - Includes index
N2  - "Simple text and photos explain a day as a unit of time and the parts of a day"--
ER  -