Mihail Buchvarov. (1973). Eleven Centuries of Bulgarian Philosophical Thought. Bulgarian Academy of Sciences.
Citazione stile Chigago Style (17a edizione)Mihail Buchvarov. Eleven Centuries of Bulgarian Philosophical Thought. Sofia: Bulgarian Academy of Sciences, 1973.
Citatione MLA (9a ed.)Mihail Buchvarov. Eleven Centuries of Bulgarian Philosophical Thought. Bulgarian Academy of Sciences, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.