APA (7th ed.) Citation

Shramko, I. B., Korost, I. I., & Zadnikov, S. A. (2018). The Defensive System of the Eastern Fortification of the Bilsk Hillfort.

Chicago Style (17th ed.) Citation

Shramko, I. B., I. I. Korost, and S. A. Zadnikov. The Defensive System of the Eastern Fortification of the Bilsk Hillfort. 2018.

MLA (8th ed.) Citation

Shramko, I. B., et al. The Defensive System of the Eastern Fortification of the Bilsk Hillfort. 2018.

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