Atlas bolgarskikh govorov v SSSR
Subtitle: karty
By: [Sostaviteli: S.B. Bernshteĭn, E.V. Cheshko, Ė.I. Zelenina; pod red. S.B. Bernshteĭna]
Publisher: Izd-vo Akademii nauk SSSR
Published: 1958
Place of publication: Moskva
Language: rus
Subjects: Bulgarian language; Dialects; Maps