TY  - BOOK
AU  - Schafer, Joe 
TI  - Helicopter maintenance / 
SN  - 0-89100-281-2
U1  - 629.1333520288 
PY  - 1980///]
CY  - Englewood, Colorado : 
PB  - Jeppesen Sanderson, 
KW  - Airplaines
KW  - Airplanes--Maintenance and Repair
KW  - Helicopters
N1  - Includes index
ER  -