APA (7th ed.) Citation

Sokhan, P. (2013). On the History of Ukraine-Bulgarian Relations of the 9–14th centuries.

Chicago Style (17th ed.) Citation

Sokhan, P. On the History of Ukraine-Bulgarian Relations of the 9–14th Centuries. 2013.

MLA (8th ed.) Citation

Sokhan, P. On the History of Ukraine-Bulgarian Relations of the 9–14th Centuries. 2013.

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