APA (7th ed.) Citation

Bobev, P. (1977). Kaliakra. Sofia-Press.

Chicago Style (17th ed.) Citation

Bobev, Peter. Kaliakra. Sofia: Sofia-Press, 1977.

MLA (8th ed.) Citation

Bobev, Peter. Kaliakra. Sofia-Press, 1977.

Warning: These citations may not always be 100% accurate.