APA (7th ed.) Citation

International Congress on Bulgarian Studies Sofia, Bulgaria, Mladenov, O., & Smilkova, V. (1982). Program: First International Congress on Bulgarian Studies, Sofia, 23 May-3 June 1981 ([2nd ed.].). Bulgarian Academy of Sciences.

Chicago Style (17th ed.) Citation

International Congress on Bulgarian Studies Sofia, Bulgaria, Oleg Mladenov, and Vi︠a︡ra Smilkova. Program: First International Congress on Bulgarian Studies, Sofia, 23 May-3 June 1981. [2nd ed.]. Sofia: Bulgarian Academy of Sciences, 1982.

MLA (9th ed.) Citation

International Congress on Bulgarian Studies Sofia, Bulgaria, et al. Program: First International Congress on Bulgarian Studies, Sofia, 23 May-3 June 1981. [2nd ed.]. Bulgarian Academy of Sciences, 1982.