APA (7th ed.) Citation

Vasilev, V. A. (1979). Dreizehn Jahrhunderte Bulgarien. Sofia-Press.

Chicago Style (17th ed.) Citation

Vasilev, Vasil A. Dreizehn Jahrhunderte Bulgarien. Sofia: Sofia-Press, 1979.

MLA (9th ed.) Citation

Vasilev, Vasil A. Dreizehn Jahrhunderte Bulgarien. Sofia-Press, 1979.

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