Angelov, V. (2019). Obrazovani čuždenci v Părvata bălgarska dăržava: = Educated foreigners in the First Bulgarian state.
Chicago-Zitierstil (17. Ausg.)Angelov, Vladimir. Obrazovani čuždenci V Părvata Bălgarska Dăržava: = Educated Foreigners in the First Bulgarian State. 2019.
MLA-Zitierstil (9. Ausg.)Angelov, Vladimir. Obrazovani čuždenci V Părvata Bălgarska Dăržava: = Educated Foreigners in the First Bulgarian State. 2019.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.