Constantine and the Christian empire / Edward Gibbon ; ed. and with an introd. by Betty Radice turn of the tide / Edward Gibbon ; ed. and with an introd. by Betty Radice science of infantry tactics simplified / by B.H. Liddell Hart ; with a foreword by Ivor Maxse study of unit administration / B.C. Freyenberg Français et Allemands : histoire anecdotique de la guerre de 1870-1871 : Sarrebrück, Spickeren, La retraite sur Metz, Pont-ü-Mousson, Borny / Dick de Lonlay How to make war : a comprehensive guide to modern warfare / James F. Dunnigan american mathmatical series College algebra / H.L. Rietz; A.R. Crathorne Spring design and calculations / comp. by John A. Roberts Formulas for stress and strain / Raymond J. Roark pyramid books Fighting marines / ed. by Phil Hirsch Principles of mechanism / F. Dyson Éléments de fortification passagère : à l'usage de l'infanterie / par le capitaine Stiennon