TY  - BOOK
AU  - Gessow, Al Fred
AU  - Myers, G. S.
TI  - Aerodynamics of the Helicopter 
SN  - 0804442754
U1  - 629.1323 
PY  - 1952///
CY  - New York : 
PB  - Frederick Ungar, 
KW  - Aerodynamics
KW  - Helicopters
N1  - NN
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-8044-4275-4.pdf
ER  -