APA (7th ed.) Citation

Yefymenko, H., & Kulchytskyi, S. (2008). Borders and territory of Ukraine in the XX century.

Chicago Style (17th ed.) Citation

Yefymenko, H., and S. Kulchytskyi. Borders and Territory of Ukraine in the XX Century. 2008.

MLA (8th ed.) Citation

Yefymenko, H., and S. Kulchytskyi. Borders and Territory of Ukraine in the XX Century. 2008.

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