TY  - BOOK
AU  - Howard,Frank
AU  - Gunston,Hill
TI  - The conquest of the air
SN  - 0236154443 :
U1  -  629.130 
PY  - 1972///
CY  - London
PB  - Elek
KW  - Aeronautics
KW  - History
KW  - Airplanes
N1  - Bibliography : p. 260-264
ER  -