Hennebert, E. Fortification. Gauthier Villars.
Cita Chicago Style (17a ed.)Hennebert, E. Fortification. París: Gauthier Villars.
Cita MLA (9a ed.)Hennebert, E. Fortification. Gauthier Villars.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.