TY  - BOOK
AU  - Graham,Ian
TI  - Helikopter
T2  - Siri bagaimana berfungsi
SN  - 9838780693
U1  - 629.133352 23
PY  - 1991///
CY  - Johor  Bahru, Johor : 
PB  - Pelangi , 
KW  - Helicopters ; Transportation engineering
ER  -