TY  - BOOK
AU  - Asimov,Isaac
TI  - Why does the moon change shape?
T2  - Ask Isaac Asimov
SN  - 0836804384
AV  - QB588 .A85 1991
U1  - 523.3/2 20
PY  - 1991///
CY  - Milwaukee
PB  - G. Stevens Children's Books
KW  - Moon
KW  - Phases
KW  - Juvenile literature
N1  - Includes bibliographical references (p. 23) and index
N2  - Explains why the moon changes from crescent to full moon  every twenty-nine and one-half days
ER  -