APA (7th ed.) Citation

Reient, O. P. (2015). World war first and consequences geopolitical cataclysm early twentieth century for Ukraine.

Chicago Style (17th ed.) Citation

Reient, O. P. World War First and Consequences Geopolitical Cataclysm Early Twentieth Century for Ukraine. 2015.

MLA (8th ed.) Citation

Reient, O. P. World War First and Consequences Geopolitical Cataclysm Early Twentieth Century for Ukraine. 2015.

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