TY  - BOOK
AU  - Arkell,Basil
AU  - Taylor,John W.R.
AU  - Cook,Frederick G.
TI  - Helicopters work like this
U1  - 629.133 
PY  - 1959///
CY  - London
PB  - Phoenix House
KW  - Helicopters
KW  - Juvenile literature
N1  - Includes index
ER  -