TY  - BOOK
AU  - Shields,Amy
TI  - First big book of why
T2  - National Geographic little kids
SN  - 9781426307935 (hardcover : alk. paper)
AV  - AG195 .S46 2011
U1  - 031.02 22
PY  - 2011///
CY  - Washington, D.C.
PB  - National Geographic
KW  - Children's questions and answers
N1  - Includes index
ER  -