catalog of united states army uniforms in the collections of the smithsonian institution United States Army Headgear 1855-1902 / Edgar M. Howell professional soldier : a social and political portrait / Morris Janowitz illustrated reference guides for collectors U.S. Army cloth insignia : 1941 to the present : an illustrated reference guide for collectors / Brian L. Davis Half-track : a history of American semi-tracked vehicles / by R.P. Hunnicutt ; line drawings by Michael Duplessis ; color drawing by Uwe Feist ; … the dorsey series in american history Recent American foreign policy : conflicting interpretations / [sel. and ed. with introd. by] Lawrence S. Kaplan