MLA

Minkov, IUliian, Todor Petev, and Radi Vasilev. Contemporary Sociology In Bulgaria : Selected Studies. Sofia: Publishing House of the Bulgarian Academy of Sciences, 1978.

APA

Minkov, I., Petev, T., & Vasilev, R. (1978). Contemporary sociology in Bulgaria : selected studies. Sofia: Publishing House of the Bulgarian Academy of Sciences.

Chicago

Minkov, IUliian., Todor Petev, and Radi Vasilev. Contemporary Sociology In Bulgaria: Selected Studies. Sofia: Publishing House of the Bulgarian Academy of Sciences, 1978.