(1973). Bulgarian Historical Review. Publication House of the Bulgarian Academy of Science.
Citazione stile Chigago Style (17a edizione)Bulgarian Historical Review. Sofia: Publication House of the Bulgarian Academy of Science, 1973.
Citatione MLA (9a ed.)Bulgarian Historical Review. Publication House of the Bulgarian Academy of Science, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.