Bʺulgarskata armiia v pʺuervata svetovna voina 1915-1918
Subtitle: kratʺuk entsiklopedichen spravochnik
By: Petko Iotov ... et al.
Publisher: Izd-vo "Sv. Georgi Pobedonosets"
Published: 1995
Place of publication: Sofiia
Language: bul