TransliterationByulleten Gidrometricheskoy chasti pri vodnom upravlenii na Kavkaze. Vypuski # 4,5,6,7,8,9,10,11. 1916 g.
In EnglishBulletin of the Hydrometric Unit at Water Management in the Caucasus. Issues # 4,5,6,7,8,9,10,11. 1916. In Russian
$399