TY  - BOOK
AU  - 
AU  - Wheeler,Harold
TI  - Marvels of the modern world
U1  - 509 WHE  
PY  - 1946///.
CY  - London : 
PB  - Odhams Press, 
KW  - Sceince- History
KW  - Technology
KW  - Inventions
ER  -