Zemke 's Wolf Pack : The Story of Hub Zemke and the 56th Fighter Group in the Skies over Europe .
Zemke , Hubert ; Freeman , Roger A. ( 1988 ) .
Zemke 's Wolf Pack : The Story of Hub Zemke and the 56th Fighter Group in the Skies over Europe .
Zemke , Hubert ; Freeman , Roger A. ( 1988 ) .