APA (7th ed.) Citation

Songeon, G. (1913). Histoire de la Bulgarie. Lib. Nationale.

Chicago Style (17th ed.) Citation

Songeon, Guerin. Histoire De La Bulgarie. Paris: Lib. Nationale, 1913.

MLA (9th ed.) Citation

Songeon, Guerin. Histoire De La Bulgarie. Lib. Nationale, 1913.

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