Ducorsky - Silence is Golden - New paperback or softback - 40 - X555z

Freeman - Airpower Allied Mistakes in North Africa - paperback or soft - X555z

Freeman - Study of Ammunition Consumption - paperback or softback - X555z

Stamford - science and the silence - New paperback or softback - X555z

Ingle - Quiet Place Within - New paperback or softback - X555z

North - Welcome Silence - New paperback or softback - X555z

Wells-Simonson - Living Beyond the Silence - New paperback or softback - X555z

Rush - Journey Out of Silence - New paperback or softback - X555z