APA (7th ed.) Citation

Bondar, O., Volkov, M., & Kondratiev, I. (2015). Unknown sketch of Lyubech dated 1651.

Chicago Style (17th ed.) Citation

Bondar, O., M. Volkov, and I. Kondratiev. Unknown Sketch of Lyubech Dated 1651. 2015.

MLA (8th ed.) Citation

Bondar, O., et al. Unknown Sketch of Lyubech Dated 1651. 2015.

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