TY  - GEN
AU  - Stratford,A.H.
TI  - Air transport economics inthe supersonic era
SN  - 0333136705
U1  - 387.7 
PY  - 1973///
CY  - London
PB  - Macmillan
KW  - Airlines
KW  - Cost of operations
KW  - Aeronautics, Commercial
N1  - Previous ed. 1967
ER  -