Columbia subject headings:
Bulgaria--Ethnic relations.
Jews--Bulgaria--History.
Sephardim--Bulgaria--History.
Tadzher, Avram M. Noṭas isṭoriḳas.
Harvard subject headings:
Bulgaria--Ethnic relations.
Jewish literature--Bulgaria--History and criticism.
Jews--Bulgaria--History.
Sephardim--Bulgaria--History.
Tadzher, Avram M. Notạs istọrikạs.
Princeton subject headings:
Bulgaria--Ethnic relations.
Jewish literature--Bulgaria--History and criticism.
Jews--Bulgaria--History.
Sephardim--Bulgaria--History.
Tadzher, Avram M. Notạs istọrikạs.