Polska fortifikat︠s︡ii︠a︡
Subtitle: opit za izsledvane vu̐z osnova dannite ot obshto-evropeĭskata voĭna i psikhologichnite zakon na voĭnata i boi︠a
By: V. Chokoĭev
Series: Voenna biblioteka -- kn. 6
Publisher: Armeĭski voenno-izdatelski fond
Published: 1922
Place of publication: Sofii︠a︡
Language: bul
Number of pages: 81
Subjects: Field Fortification