APA aipamena

Stoĭkov, G. I., ̊Karadzhov, I., & ̊Kabzamalov, N. (1954). Boyana Church. [Bulgarian Academy of Science, Town Planning and Architecture Institute].

Chicago Style aipamena

Stoĭkov, Georgi I., Ivan ̊Karadzhov, and Neno ̊Kabzamalov. Boyana Church. Sofia: [Bulgarian Academy of Science, Town Planning and Architecture Institute], 1954.

MLA aipamena

Stoĭkov, Georgi I., et al. Boyana Church. [Bulgarian Academy of Science, Town Planning and Architecture Institute], 1954.