Oswald Boelcke: Germany's First Fighter Ace and Father of Air CombatLivre audioOswald Boelcke: Germany's First Fighter Ace and Father of Air CombatdeBGen R. G. HeadÉvaluation : 4 sur 5 étoiles4/5Enregistrer Oswald Boelcke: Germany's First Fighter Ace and Father of Air Combat pour plus tard