APA

Bulg. Acad. of Science Prof. Marin Drinov Academic, . (2014). PAPERS of BAS. Humanities and Social Sciences. : Bulg. Acad. of Science.

Chicago

Bulg. Acad. of Science Prof. Marin Drinov Academic, . 2014. PAPERS of BAS. Humanities and Social Sciences. : Bulg. Acad. of Science.

Harvard

Bulg. Acad. of Science Prof. Marin Drinov Academic, . (2014). PAPERS of BAS. Humanities and Social Sciences. : Bulg. Acad. of Science.

MLA

Bulg. Acad. of Science Prof. Marin Drinov Academic, . PAPERS of BAS. Humanities and Social Sciences. : Bulg. Acad. of Science. 2014.