General location of seaside fortresses and bases of the device of their underwater mine defense

Tsygalsky, Alexander Viktorovich (1874-).The total location of the seaside fortresses and the founding of the device of their underwater mine defense: (debt. Sour. Min. System) / Alexander Tsygalsky, military.Ing., Pre.Fortifications of Nikolaev.Ing.Acad.and school.- St. Petersburg: Type.Usmanova, 1913. - [4], VI, 291 p., 13 liters.Il.: Il.;25. -Bibliography: with.285-289.- Ot.From "Inzh. journal."for 1912-13.1. Power (collection).Electronic Source: PBOriginal Storage Place: VUNC Navy "Naval Academy"