TY  - BOOK
AU  - Posin,Daniel Q.
AU  - Armstrong,Bill H.
TI  - Physics, its marvels and mysteries
U1  - 823 
PY  - 1961///
CY  - Racine
PB  - Whitman Pub.
KW  - Physics
KW  - Juvenile fiction
KW  - Children's stories, English
ER  -