TY  - GEN
AU  - Niu, Michael Chun-Yung
TI  - Airframe Structural Design:Practical Design Information and Data on Aircraft Structures
U1  - 629.13431 NIU 
PY  - 1988///
CY  - Hongkong
PB  - Hongkong Conmilit Press
N1  - BE textbook
ER  -