TY  - BOOK
AU  - Willis,John
TI  - Helicopters
T2  - Mighty military machines
SN  - 9781489647634
U1  - 428.6 23
PY  - 2017///
CY  - New York : 
PB  - AV2 by Weigl , 
KW  - Readers. ; Military helicopters - Juvenile literature
ER  -