TY  - BOOK
AU  - Knight,David C.
TI  - The first book of air: a basic guide to the earth's atmosphere 
T2  - The First books
AV  - PZ10.K57 Fg
U1  - 551.5 
PY  - 1961///
CY  - New York
PB  - F. Watts
KW  - Air
KW  - Juvenile literature
KW  - Atmosphere
N1  - Includes index; The air around us --
How do we know that air is there ? --
What if there were no air ? --
Does air move ? --
ER  -