APA (7th ed.) Citation

Petrenko, O., & Petrenko, O. De ja?!

Chicago Style (17th ed.) Citation

Petrenko, Oľha, and Oleh Petrenko. De Ja?!

MLA (9th ed.) Citation

Petrenko, Oľha, and Oleh Petrenko. De Ja?!

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