01009cam a2200289 4500 1161826237 TxAuBib 20130211120000.0 990110s1991||||||||||||||||||||||||eng|u 90025430 /AC 9780836804386 0836804384 TxAuBib Asimov, Isaac, 1920- Why Does The Moon Change Shape / by Isaac Asimov. A Gareth Stevens Children's Books ed. Milwaukee : G. Stevens Children's Books, 1991. 24 p. : col. ill. ; 26 cm. Ask Isaac Asimov Includes bibliographical references (p. 23) and index. Explains why the moon changes from crescent to full moon every twenty-nine and one-half days. 19990110. Moon Phases Juvenile literature. Moon Phases. Ask Isaac Asimov. KXMJG