Pickelhaube : Line infantry / J.A. Bowman ; ed. by John R. Angolia ; introd. by Eric J. Johansson / J.A. Bowman NSKK/NSFK : uniforms, organisation and history / by John R. Angolia and David Littlejohn Swords of Germany, 1900/1945 / John R. Angolia ; imperial supplement by Gregory Douglas
