000 00308nam a2200121Ia 4500
008 160710s1957 xx 000 0 und d
082 _a629.1325 UNI
100 _aWHITESIDE, T.C.
245 _aPROBLEMS OF VISION IN FLIGHT AT HIGH ALTITUDE
260 _bBUTTERWORTH
_c1957
300 _a162
942 _2ddc
_cB
999 _c37972
_d37972