TY  - BOOK
AU  - Ehrlich,Robert
TI  - What if?: mind-boggling science questions for kids 
SN  - 0471176087
AV  - Q173  .E47 1998
PY  - 1998///
CY  - New York
PB  - John Wiley
KW  - Science
KW  - Miscellanea
KW  - Juvenile literature
ER  -