APA (7th ed.) Citation

Robak, Y., & Demochko, H. L. (2017). Valentyn Otamanovsky in the Ukrainian Revolution of 1917-1921.

Chicago Style (17th ed.) Citation

Robak, Yu, and H. L. Demochko. Valentyn Otamanovsky in the Ukrainian Revolution of 1917-1921. 2017.

MLA (8th ed.) Citation

Robak, Yu, and H. L. Demochko. Valentyn Otamanovsky in the Ukrainian Revolution of 1917-1921. 2017.

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